I've started working on my Endura 4 comparison. The article is going to compare a VG10 Endura to a ZDP189 Endura. Currently the VG10 knife has the stock profile while my ZDP189 knife has been reprofiled flat to the saber grind then given a microbevel.
The purpose of the test is to measure a few different things. Namely:
-The difference in cutting ability between the two edge profiles, specifically measured when possible
-The difference in overall toughness the profile makes
-A comparison of edge holding between the two steels
-Observing the sharpening response of each steel.
The VG10 knife will most likely be reprofiled in the same fashion after the first test run is over, then certain tests like edge holding will be repeated.
You can read what I've written so far at the following link: http://metalx.org/raum/Articles/e4comparison.html
Comparison of Factory Edges and Reprofiled Edges (VG10 & ZDP189)
Comparison of Factory Edges and Reprofiled Edges (VG10 & ZDP189)
May you find peace in this life and the next.
Think ZDP189 is hard to sharpen? Check out these numbers:
Go here to read more about the sharpness testing.
Afterwards I resharpened the knife using one pass per side on a DMT fine.At the end of the cutting ability comparison, the sharpness of each knife was measured. The ZDP189 Endura carved wood, cut food, was pushed through some CAT5 cable and cut about 80 feet of cardboard. The sharpness was then tested on the most used portion of the edge
ZDP189
1. 187
2. 181.6
3. 131.2
4. 189.4
5. 148.7
6. 153.2
7. 148.5
8. 189.3
9. 167.4
10. 173.1
Average: 166.94
Assuming my math is right, that's a roughly 60% increase in sharpness off of a total of two strokes on a fine stone (1200 grit I believe).ZDP189
1. 77.5
2. 80.5
3. 114.3
4. 86.9
5. 92.5
6. 86.5
7. 135
8. 111.1
9. 88.8
10. 117.8
Average: 99.09
Go here to read more about the sharpness testing.
May you find peace in this life and the next.
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mark greenman
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- Joined: Sun Apr 27, 2008 2:57 pm
