Blade Sharpness Research Project

[helicopter]

This evening I measured the Wizamet Super Iridium Extra Stainless blade from Proctor and Gamble Russia. We had some interest in it, and I already had it in the slot for blades I wanted to try for my own interest, so I moved it to the front. This one was produced on May 19, 2023. It comes in excellent packaging; A nice cardboard tuck of ten blades, and the individual blades awe wrapped in printed waxed paper with medium wax dots.

It looks exceptionally smooth under a microscope. The bevel is shorter than sharper blades, but it is finely ground, heavily and finely honed, and moderately coated. This blade is quite consistent, and only moderately sharp, and moderately durable, but it is highly regarded and it seems to sell out despite a fairly expensive price point. I am guessing people like it for its smoothness. That honing goes almost all the way up the bevel and it probably makes a difference in how the blade glides across skin.

After testing, the coating and bevel are worn and smoothed out, and the blade shows some moderate chipping along the apex typical of razor blades.

Information Summary:

Date	7/22/24	7/22/24	7/22/24	7/22/24	7/22/24
Blade	Wizamet	Super Iridium	Extra Stainless	P&G Russia	May 19, 2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	9	9	8	10	10
Median F (g)	79	87	86	98	98
Mean F (g) Btm	83	89	86	96	98
Mean F (g) Top	75	82	89	95	100
Mean F (g)	79	85	88	96	99
BESS Adj. Factor	0.83	0.83	0.83	0.83	0.83
Av. Adj. F (g) Bt	69	74	71	80	81
Av. Adj. F (g) Top	62	68	74	79	83
Median adj. F (g)	66	72	71	81	81
Mean adj. F (g)	66	71	73	80	82

Complete Data:

Date	7/22/24	7/22/24	7/22/24	7/22/24	7/22/24
Blade	Wizamet	Super Iridium	Extra Stainless	P&G Russia	May 19, 2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	9	9	8	10	10
Median F (g)	79	87	86	98	98
Mean F (g) Btm	83	89	86	96	98
Mean F (g) Top	75	82	89	95	100
Mean F (g)	79	85	88	96	99
F (g) 1	86	88	82	99	97
F (g) 2	95	87	85	99	88
F (g) 3	81	88	84	99	102
F (g) 4	88	87	80	103	86
F (g) 5	85	96	99	94	100
F (g) 6	76	81	83	98	87
F (g) 7	89	99	85	99	100
F (g) 8	83	87	85	99	95
F (g) 9	85	91	99	105	115
F (g) 10	78	98	88	108	99
F (g) 11	78	100	77	94	95
F (g) 12	74	82	86	78	103
F (g) 13	80	78	91	95	102
F (g) 14	75	74	75	87	99
F (g) 15	99	92	86	89	96
F (g) 16	81	89	90	99	95
F (g) 17	73	75	78	90	97
F (g) 18	74	61	88	93	81
F (g) 19	79	78	77	114	112
F (g) 20	75	84	103	98	93
F (g) 21	58	82	83	118	113
F (g) 22	81	89	86	112	92
F (g) 23	60	82	103	85	118
F (g) 24	72	89	99	86	124
F (g) 25	70	84	89	99	102
F (g) 26	77	91	73	81	99
F (g) 27	82	69	98	83	110
F (g) 28	79	90	98	101	85
F (g) 29	89	82	83	72	92
F (g) 30	74	86	94	98	93

 

[Sweeney_]

This evening I measured the Wizamet Super Iridium Extra Stainless blade from Proctor and Gamble Russia. We had some interest in it, and I already had it in the slot for blades I wanted to try for my own interest, so I moved it to the front. This one was produced on May 19, 2023. It comes in excellent packaging; A nice cardboard tuck of ten blades, and the individual blades awe wrapped in printed waxed paper with medium wax dots.

View attachment 1882033

View attachment 1882034

It looks exceptionally smooth under a microscope. The bevel is shorter than sharper blades, but it is finely ground, heavily and finely honed, and moderately coated. This blade is quite consistent, and only moderately sharp, and moderately durable, but it is highly regarded and it seems to sell out despite a fairly expensive price point. I am guessing people like it for its smoothness. That honing goes almost all the way up the bevel and it probably makes a difference in how the blade glides across skin.

View attachment 1882035

After testing, the coating and bevel are worn and smoothed out, and the blade shows some moderate chipping along the apex typical of razor blades.

View attachment 1882036

Information Summary:

View attachment 1882030

View attachment 1882032

Date	7/22/24	7/22/24	7/22/24	7/22/24	7/22/24
Blade	Wizamet	Super Iridium	Extra Stainless	P&G Russia	May 19, 2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	9	9	8	10	10
Median F (g)	79	87	86	98	98
Mean F (g) Btm	83	89	86	96	98
Mean F (g) Top	75	82	89	95	100
Mean F (g)	79	85	88	96	99
BESS Adj. Factor	0.83	0.83	0.83	0.83	0.83
Av. Adj. F (g) Bt	69	74	71	80	81
Av. Adj. F (g) Top	62	68	74	79	83
Median adj. F (g)	66	72	71	81	81
Mean adj. F (g)	66	71	73	80	82

Complete Data:

Date	7/22/24	7/22/24	7/22/24	7/22/24	7/22/24
Blade	Wizamet	Super Iridium	Extra Stainless	P&G Russia	May 19, 2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	9	9	8	10	10
Median F (g)	79	87	86	98	98
Mean F (g) Btm	83	89	86	96	98
Mean F (g) Top	75	82	89	95	100
Mean F (g)	79	85	88	96	99
F (g) 1	86	88	82	99	97
F (g) 2	95	87	85	99	88
F (g) 3	81	88	84	99	102
F (g) 4	88	87	80	103	86
F (g) 5	85	96	99	94	100
F (g) 6	76	81	83	98	87
F (g) 7	89	99	85	99	100
F (g) 8	83	87	85	99	95
F (g) 9	85	91	99	105	115
F (g) 10	78	98	88	108	99
F (g) 11	78	100	77	94	95
F (g) 12	74	82	86	78	103
F (g) 13	80	78	91	95	102
F (g) 14	75	74	75	87	99
F (g) 15	99	92	86	89	96
F (g) 16	81	89	90	99	95
F (g) 17	73	75	78	90	97
F (g) 18	74	61	88	93	81
F (g) 19	79	78	77	114	112
F (g) 20	75	84	103	98	93
F (g) 21	58	82	83	118	113
F (g) 22	81	89	86	112	92
F (g) 23	60	82	103	85	118
F (g) 24	72	89	99	86	124
F (g) 25	70	84	89	99	102
F (g) 26	77	91	73	81	99
F (g) 27	82	69	98	83	110
F (g) 28	79	90	98	101	85
F (g) 29	89	82	83	72	92
F (g) 30	74	86	94	98	93

Oh you're good, you mindreader!

 

[WhiskerLess]

@helicopter Kudos to this project of yours and it would absolutely help many of us here.
I don't want to add any more burden to your work but I really believe it will improve this thread.
Forget it if its too much of a work.

Blade list is getting long and not easy to search for a specific data anymore.
Is it possible to somehow include a hyper link to the exact page of each blade data?

Maybe a hyperlink on each blade name in your graph?

 

[helicopter]

Well that is indeed interesting concerning the Astra SP vs 7OC Black.

I am surprised we don't see it more often when so many plants and companies have dozens of blades. It is fairly common for a plant to make blades for several markets, with 1, 2, or 3 brands in an individual market, and a whole line of blades under each brand. If you buy an existing brand that has a loyal following for each product, I can see keeping it, but if you are going to launch a new product under one of your brands, you can save yourself a lot of trouble by repackaging a top product that already exists somewhere else in your portfolio.

Of course, Chinese blades are a big exception. There are loads of white label blades and very little transparency. On ALibaba and Temu, you can order cases of blades and they will print whatever you want on the package. It is funny, I will order 8 different blades to try on Ali Express and receive 2 of the ones I ordered, 3 Flydear Super Platinums, 2 Matgicols, and a Pearl. If I ask the seller they say "yeah, its the same thing" and I usually just take their word for it because it is difficult to check.

What's more surprising is that Astra SP's data shows better and more consistent all through out the test than 7'OC black.

Indeed; it would be a much better look for them if the expensive one were the one that performed slightly better. It is a small difference, though. If it isn't the same blade, it might as well be. We often see more variation than this between batches of P&G blades, and P&G is more consistent than most companies. I bet if we tested ten batches of each of these two, we would have like 85% overlap.

@helicopter Kudos to this project of yours and it would absolutely help many of us here.
I don't want to add any more burden to your work but I really believe it will improve this thread.
Forget it if its too much of a work.

Blade list is getting long and not easy to search for a specific data anymore.
Is it possible to somehow include a hyper link to the exact page of each blade data?

Maybe a hyperlink on each blade name in your graph?

I agree we need an index of sorts. If I had access to edit my opening post, I might just put it at the top of the thread. I had also considered using the Wiki for this, but it seemed tedious; same for the "reviews" function of the website. You'd have to pay me to get me to bother with the creator side of either of those. I was thinking about doing the same thing with the chart, but I think I will just add a table of hyperlinks to the review format to keep the initial effort and the recurring effort low. I want to keep it so that most of the time I am putting into the project is actually measuring and taking pictures, rather than writing and making reports.

 

[Eric_75]

I also measured the Treet Platinum blade from Pakistan, because we also had some interest in it. It seems fairly similar to the Treet Dura Sharp in sharpness.

Treet Dura Sharp blow Treet Platinum out of the water, imho.

All YMMV, of course.

 

[Sweeney_]

I agree we need an index of sorts. If I had access to edit my opening post, I might just put it at the top of the thread. I had also considered using the Wiki for this, but it seemed tedious; same for the "reviews" function of the website. You'd have to pay me to get me to bother with the creator side of either of those. I was thinking about doing the same thing with the chart, but I think I will just add a table of hyperlinks to the review format to keep the initial effort and the recurring effort low. I want to keep it so that most of the time I am putting into the project is actually measuring and taking pictures, rather than writing and making reports.

If wanting to refresh my memory on a specific blade, I just type the name in search and choose search this thread option. Easy enough although a list of blades tested along with the post# which has the specific data could make it more organized.

 

[cranewarrior]

Many thanks again for your hard work. It is very interesting and appreciated.

 

[Sweeney_]

Treet Dura Sharp blow Treet Platinum out of the water, imho.

All YMMV, of course.

At least for the first couple of shaves.
You must be a member of that One&Done cult.

 

[Eric_75]

At least for the first couple of shaves.
You must be a member of that One&Done cult.

Life's too short for lousy shaves.

Hope all is well with you, my friend.

 

[helicopter]

This afternoon, I took a look at another blade that has been getting attention lately, the RK Stainless blade imported by Henson from Tigaksha in India. There were some comments praising this blade, and it looks like it will be mild, so maybe there is something to it. I usually prefer evenly ground, sharp, and durable blades with consistent edges, so I probably won't like it as much as some people do.

It comes in a cardboard tuck wrapped in waxed paper with a small wax dot. It is not marked with a date code, but there is a lot number 8 on it. The blade says it is specifically made for the Henson AL13. I wonder if that means the printing, only, or if there is something meaningful there. I think they would have done better with Chinese white label blades.

The primary bevel is unevenly ground and coarse. The secondary bevel is moderately ground, and the edge is honed a good bit. Some of the jaggedness of the primary bevel is still there at the edge after honing. It probably feels alright, but these scratches usually make weak spots that don't wear evenly. It has a thick and even coating.

After testing, the edge is in pretty good shape with some dents in it, and the coating gone. This is one of those tough and resilient steels that is difficult to get very sharp or to keep sharp, but might feel smoother than a chipped up edge on your typical heavily used razor steel.

Information Summary:

It is pretty similar to the Treet Dura Sharp in performance, so maybe Eric will like it.Treet is Pakastani, though, so don't confuse them if you don't want to get yourself into trouble.

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	RK Henson	Stainless for AL13	Lot 8	Tigaksha India	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	13	14	15	13	18
Median F (g)	86	82.5	91.5	96	103.5
Mean F (g) Btm	96	88	98	100	116
Mean F (g) Top	78	83	91	100	103
Mean F (g)	87	86	94	100	110
BESS Adj. Factor	0.83	0.83	0.83	0.83	0.83
Av. Adj. F (g) Bt	80	73	81	83	97
Av. Adj. F (g) Top	65	69	75	83	85
Median adj. F (g)	71	69	76	80	86
Mean adj. F (g)	72	71	78	83	91

It had one sharp edge and one dull edge. I don't like to see that, but it is fairly common.

Complete Data:

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	RK Henson	Stainless for AL13	Lot 8	Tigaksha India	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	13	14	15	13	18
Median F (g)	86	82.5	91.5	96	103.5
Mean F (g) Btm	96	88	98	100	116
Mean F (g) Top	78	83	91	100	103
Mean F (g)	87	86	94	100	110
F (g) 1	101	83	91	90	139
F (g) 2	88	122	88	104	115
F (g) 3	99	117	93	120	109
F (g) 4	101	83	92	82	103
F (g) 5	85	80	80	96	131
F (g) 6	103	89	86	107	122
F (g) 7	99	69	96	91	133
F (g) 8	92	70	87	94	100
F (g) 9	99	79	122	88	106
F (g) 10	79	99	94	126	136
F (g) 11	88	82	135	103	103
F (g) 12	83	80	99	94	101
F (g) 13	125	88	93	127	102
F (g) 14	104	92	92	90	142
F (g) 15	96	90	115	86	105
F (g) 16	84	98	81	100	94
F (g) 17	87	94	71	95	95
F (g) 18	96	102	82	88	100
F (g) 19	76	102	80	79	104
F (g) 20	70	80	121	115	110
F (g) 21	72	75	91	91	89
F (g) 22	78	104	108	112	102
F (g) 23	77	67	82	96	89
F (g) 24	76	69	93	114	157
F (g) 25	76	65	112	86	92
F (g) 26	74	77	81	97	85
F (g) 27	72	95	87	126	121
F (g) 28	72	72	79	95	94
F (g) 29	90	76	111	100	113
F (g) 30	73	76	83	107	99

Index

Leaf Single Edge Blade

Assured For Men (AFM) blade from Dollar Tree

Flydear SP

Gillette 7 O'Clock Permasharp Stainless India

7AM Plus Hi Platinum

Treet 7 Days Platinum

Gillette Permasharp Stainless Russia

Feather New Hi-Stainless Yellow Japan

Voskhod Teflon Russia

Nacet Stainless Russia A

Bic Chrome Platinum

Personna Comfort Coated Blue USA blade by AccuTec

Shark Super Chrome Super Stainless

Shark Super Stainless

Shark Platinum

Gillette Silver Blue Stainless Russia

Gillette Platinum Russia

Gillette Wilkinson Sword India saloon

Astra SP Green India

Nacet Stainless Russia B

Wilkinson Sword Germany

Suneko My Way Amorphous Diamond Super Stainless New Platinum

Matgicol Super Platinum Swedish Stainless

King C Gillette China

Gillette Minora Stainless Russia

Treet Dura Sharp

Personna Energizer USA

Van Der Hagen Basics Super Stainless China

Gutche

Jifuli Platinum Edge Stainless GF-4395 Baolai

Derby Extra Super Stainless Green

Cloud Super Stainless Red

Flying Eagle Gillette Carbon Steel

Lord Platinum Super Stainless

Tiger Platinum Grey

Kai

Treet Platinum

Gillette 7 O'Clock Super Platinum India Black

Wizamet Super Iridium Extra Stainless

 

[PALORAZOR]

Seems the Bic CP and Perma Sharp Russian are the goldilocks blades so far in terms of sharpness, consistency, and durability. I may try rotating these two blades for an aggressive day followed by a milder day.

 

[WhiskerLess]

@helicopter Thanks for considering my earlier suggestion. I know it’s a lot of work.

Index will surely be a great use now and for many years to come.

 

[helicopter]

This evening, we have the Astra SS blue Russian blades. This first one, which was manufactured December 1, 2019, performed rather poorly, and anticipating objections, I went ahead and measured another one to see how it was. The stenciling on this blade is unusual for a Russian P&G blade, with no grind numbers and outlined typeface.

The back of the blade is blank. The writing on the tab of the tuck indicated the blade is made in Russia.

Under the microscope, it looks like an Astra. It is finely and evenly ground, with a consistent scratch pattern, and has a thick and even coating.

After testing, the coating is worn, the edge has smoothed a bit, and there is lots of medium chipping along the edge, typical of heavily worn razor steels.

The blade from April 23, 2017 has typical Russian Gillette stenciling. The tuck also indicates it is made in Russia.

It looks very similar under a microscope. The coating is a but thinner, but these two blades look like they were made to the same specifications, but this one looks a little better. The coating is more even, and it looks a little smoother on the bevel.

After testing, there is some chipping, but this blade is in much better condition than the other one. I would not be afraid to shave with it in this condition, but a new blade would work a little better.

So what's going on here? Well, due to the similarities in the edges, I believe these are both Gillette blades, and I trust that since both tucks are marked with Russian origin, I believe that is also true. I don't think the inferior blade is a counterfeit; I think it is just poorly made by Gillette. It wouldn't surprise me if the one from 2019 was made in a different Russian facility, or on a different production line with different machinery.

Let's take a look at the measurements.

Information Summary:

It will be nice to see how these compare to the Indian one, but I am waiting for it to come here from RBC. The 2019 one isn't terrible; it is reasonably durably and consistent; it has a smooth and beautifully honed bevel; it just isn't how I expect Astras to be, having used only the sharper ones.

I was thinking we already had the Russian Astra SP on here, but it looks like we actually need to do that one again with the current methodology for comparability.

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	Astra SS	Superior Stainless	Russia	P&G	December 1, 2019
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	13	13	10	12	17
Median F (g)	83	91.5	106	114	129.5
Mean F (g) Btm	90	95	107	117	119
Mean F (g) Top	75	94	104	114	134
Mean F (g)	83	95	106	115	126
BESS Adj. Factor	0.83	0.83	0.83	0.83	0.83
Av. Adj. F (g) Bt	75	79	89	97	99
Av. Adj. F (g) Top	62	78	86	95	111
Median adj. F (g)	69	76	88	95	108
Mean adj. F (g)	69	79	88	96	105

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	Astra SS	Superior Stainless	Russia	P&G	April 23, 2017
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	29	29	29	29	29
Std. Dev.	9	9	11	13	11
Median F (g)	79	83	85	90	95
Mean F (g) Btm	85	81	83	86	92
Mean F (g) Top	73	82	89	97	97
Mean F (g)	79	82	86	91	94
BESS Adj. Factor	0.83	0.83	0.83	0.83	0.83
Av. Adj. F (g) Bt	71	68	69	72	76
Av. Adj. F (g) Top	60	68	74	80	81
Median adj. F (g)	66	69	71	75	79
Mean adj. F (g)	66	68	71	76	78

Complete Data:

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	Astra SS	Superior Stainless	Russia	P&G	December 1, 2019
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	13	13	10	12	17
Median F (g)	83	91.5	106	114	129.5
Mean F (g) Btm	90	95	107	117	119
Mean F (g) Top	75	94	104	114	134
Mean F (g)	83	95	106	115	126
F (g) 1	88	93	111	122	103
F (g) 2	96	88	108	110	105
F (g) 3	92	85	104	110	146
F (g) 4	112	96	122	125	95
F (g) 5	84	82	105	123	143
F (g) 6	89	104	117	114	116
F (g) 7	111	102	93	105	113
F (g) 8	104	74	102	108	136
F (g) 9	93	92	95	114	125
F (g) 10	75	88	108	95	135
F (g) 11	86	97	105	132	105
F (g) 12	76	95	118	122	105
F (g) 13	75	113	109	141	121
F (g) 14	83	103	104	118	118
F (g) 15	89	113	109	112	117
F (g) 16	79	80	123	123	119
F (g) 17	76	111	90	132	101
F (g) 18	85	82	118	111	142
F (g) 19	69	77	96	116	144
F (g) 20	90	78	116	128	106
F (g) 21	93	86	96	98	143
F (g) 22	62	103	107	109	139
F (g) 23	67	81	118	91	138
F (g) 24	75	91	108	101	154
F (g) 25	70	91	95	114	141
F (g) 26	75	130	83	132	134
F (g) 27	71	114	92	111	138
F (g) 28	69	90	98	121	114
F (g) 29	60	110	117	109	135
F (g) 30	83	89	101	113	158

Date	7/23/24	7/23/24	7/23/24	7/23/24	7/23/24
Blade	Astra SS	Superior Stainless	Russia	P&G	April 23, 2017
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	29	29	29	29	29
Std. Dev.	9	9	11	13	11
Median F (g)	79	83	85	90	95
Mean F (g) Btm	85	81	83	86	92
Mean F (g) Top	73	82	89	97	97
Mean F (g)	79	82	86	91	94
F (g) 1	85	84	80	83	102
F (g) 2	87	82	82	65	79
F (g) 3	91	68	85	89	103
F (g) 4	84	84	64	83	69
F (g) 5	90	83	87	112	88
F (g) 6	73	80	72	87	101
F (g) 7	81	71	82	84	96
F (g) 8	87	78	83	82	78
F (g) 9	92	83	89	78	107
F (g) 10	79	68	81	101	88
F (g) 11	84	95	81	103	94
F (g) 12	82	87	91	61	79
F (g) 13	90	84	85	93	88
F (g) 14	92	88	93	82	93
F (g) 15	83	86	85	89	115
F (g) 16	65	80	88	90	95
F (g) 17	64	107	85	85	99
F (g) 18	70	80	84	110	86
F (g) 19	79	84	88	106	95
F (g) 20	70	73	76	106	104
F (g) 21	69	86	84	101	86
F (g) 22	77	95	86	105	95
F (g) 23	78	87	98	106	110
F (g) 24	78	74	77	91	86
F (g) 25	78	94	112	83	95
F (g) 26	73	67	108	98	100
F (g) 27	87	73	108	106	93
F (g) 28	65	79	81	95	106
F (g) 29	64	73	71	75	109

Index

Leaf Single Edge Blade

Assured For Men (AFM) blade from Dollar Tree

Flydear SP

Gillette 7 O'Clock Permasharp Stainless India

7AM Plus Hi Platinum

Treet 7 Days Platinum

Gillette Permasharp Stainless Russia

Feather New Hi-Stainless Yellow Japan

Voskhod Teflon Russia

Nacet Stainless Russia A

Bic Chrome Platinum

Personna Comfort Coated Blue USA blade by AccuTec

Shark Super Chrome Super Stainless

Shark Super Stainless

Shark Platinum

Gillette Silver Blue Stainless Russia

Gillette Platinum Russia

Gillette Wilkinson Sword India saloon

Astra SP Green India

Nacet Stainless Russia B

Wilkinson Sword Germany

Suneko My Way Amorphous Diamond Super Stainless New Platinum

Matgicol Super Platinum Swedish Stainless

King C Gillette China

Gillette Minora Stainless Russia

Treet Dura Sharp

Personna Energizer USA

Van Der Hagen Basics Super Stainless China

Gutche

Jifuli Platinum Edge Stainless GF-4395 Baolai

Derby Extra Super Stainless Green

Cloud Super Stainless Red

Flying Eagle Gillette Carbon Steel

Lord Platinum Super Stainless

Tiger Platinum Grey

Kai

Treet Platinum

Gillette 7 O'Clock Super Platinum India Black

Wizamet Super Iridium Extra Stainless

RK Stainless Henson

Astra SS Blue Russia

 

[NorthernSoul]

This evening I measured the Gillette 7 O'Clock Super Platinum black blade from India.

You're really on a roll with the blade testing!

The issue with these blades is the current price. They used to be a good deal at around $15/100 a few years ago. Then, the price shot up to maybe double that. So, compared with blades such as BIC Chrome Platinum, they are not a good value nowadays.

One reason the Wizamet is popular is because the former Iridium Super was a great all-around blade at a reasonable price. It became a favorite of many people here. This is another case where the price shot way up and the product quality decreased.

Both blades are riding on their past reputation, IMHO.

 

[NorthernSoul]

There is an unanswered question that comes up here fairly often: Are Lord blades all the same, just three or four different types with different packaging? Or not.

The Lord Silver Star blades are one that is pretty popular here and many people seem to think they're a cut above many of the other Lord blades. Is it really the case, though? Maybe they're basically the same as the Lord Platinum? No one knows for sure. They do seem like a really good value at $8/100. They seem to work well in more aggressive razors.

 

[Eric_75]

There is an unanswered question that comes up here fairly often: Are Lord blades all the same, just three or four different types with different packaging? Or not.

The Lord Silver Star blades are one that is pretty popular here and many people seem to think they're a cut above many of the other Lord blades. Is it really the case, though? Maybe they're basically the same as the Lord Platinum? No one knows for sure. They do seem like a really good value at $8/100. They seem to work well in more aggressive razors.

Lord Silver Star and Lord Platinum are very different, imho.

All YMMV, of course.

 

[NorthernSoul]

Lord Silver Star and Lord Platinum are very different, imho.

All YMMV, of course.

OK, which other Lord blades seem similar to the Silver Star (if any)?

Maybe some similarity to Racer Stainless, but there is a Racer Platinum that might be closer.

(apology if we are going off topic on this thread)

 

[cranewarrior]

OK, which other Lord blades seem similar to the Silver Star (if any)?

Maybe some similarity to Racer Stainless, but there is a Racer Platinum that might be closer.

(apology if we are going off topic on this thread)

The Lord Super Chrome or Shark Super Chrome are closest to the Silver Star in my opinion. I do not think the Racer Stainless is similar.

 

[Eric_75]

OK, which other Lord blades seem similar to the Silver Star (if any)?

To me, no other Lord blades feel like Silver Star.

Btw, I always appreciate your insights, sir.

 

[catchacoolbreeze]

I have not read this entire thread but will add that I've had inconsistencies with Gillette Platinum and Gillette Silver Blues. Additional magnification may help also in your assessment. I will link some pics of GPs that are brand new. These chips in the bevel were consistent through multiple NEW blades.

Gillette Platinum - Inconsistencies?

This is not my first time writing about blade inconsistencies and I wanted to reach out to see if any of you have noticed this with Gillette Platinum. I bought a 100 pack in April 2022 with date code on the tuck of 04/04/21 and they have been the best blades I've used ever. I since bought...

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