Tuesday, April 24, 2012

Knife Review of Sanrenmu 707 - EDC


There’s been a lot of discussion and speculation on the quality of inexpensive knives coming out of China.  Notice that I used the word inexpensive and not cheap;  because after doing a fair bit of reading and research on the build quality, fit and finish of the Sanrenmu brand of knives, I finally decided to purchase one a few weeks ago.  One major positive on these knives, is that they are reported to be manufactured in the same plant with the Spyderco Tenacious, CRKT Drifter and some models of Benchmade.   Speculation or not, I have been very much impressed with the overall quality and the attention to detail of the Sanrenmu 707 which I purchased from a USA Ebay Seller. Even more impressive is the sticker price at around $11.00 shipped.    By the way, the Sanrenmu looks identical to the CRKT Drifter which retails at around $23.00 plus shipping.  Any of us would be hard pressed to find a knife of this quality at even double the price.  I own the excellent and affordable Ken Onion designed Kershaw Vapor and the Sanrenmu 707 easily compares in terms of workmanship, ease of sharpening and ease of deployment. Here are the specs:

Blade-8cr13MOV 57 HRC
G10 Handles
Lanyard Hole
Razor Sharp
Thumb Studs Opening
Stainless Steel Pocket Clip 
Open- 6 1/2"
Closed-3 1/2"
Weight- 2 3/8ozs.

The blade locks firmly in the deployed position; and, there is no noticeable blade play.  The edge came super sharp from the factory.  However, after re-profiling using a Japanese waterstone (1000/6000 grit) and using a leather strop, I was able to achieve a convex edge on the blade; I prefer the convex edge for sharpness and edge retention.  I was able to get this particular blade sharp enough to shave facial hair.  Now I’m not hard on my knives, but, to see how good the steel and edge retention would be, I spent some time making feather sticks and just doing some general whittling.  The Sanrenmu performed these tasks effortlessly, and it was really quite enjoyable.  The blade retained a reasonable amount of sharpness still able to slice through paper without hesitation.  After a couple of strops on the leather paddle, I was able to get that hair shaving sharpness again.  I’ve been carrying this knife as my EDC for about a month now, and I am confident that it will fulfill any needed task.  In terms of quality workmanship, style and price this knife is highly recommended.  ~Keep it Sharp.

Monday, April 23, 2012

DIY Knife Review - Woodcraft Knife Kit Assembly

So I’ve wanted to make a knife for some time and was looking for an easy kit that wasn’t going to require a huge investment in new tools. As it happened, I was at the local Woodcraft store and found a knife kit that seemed easy enough. The cost of the kit was $20.99.

Here’s the product detail from the Woodcraft.com site:

These knife kits are constructed from 1/8" 440C Stainless Steel with a hollow ground and highly polished blade section. Just shape, mount and finish your custom handles for a one of a kind, high quality knife kit. Kits include blade, aluminum scale pins and instructions. Made in China.
  •  440C Stainless steel blade 
  •  Custom fitted sheath 
  •  3 aluminum pins 
  •  3" 3/4 inch blade 
  •  8 3/8" overall 
Since the kit did not include the handle material, while in the store, I picked up a pair of Rosewood Bolivian knife scales which measured in at 3/8” x .5” x 5” each. The scales come packaged together at a cost of $4.99. Total cost for the material to make the knife was $25.99 plus tax. After getting home, I used the knife blank to trace the outline of the handle. Using two sided tape, I put both scales together and made my preliminary cuts with a reciprocating saw. I know that this was not an ideal tool but this was what I had available to me and my plan was to not buy any new equipment. Once I cut the scales to the general shape, I drilled the required holes and then epoxied and pinned the scales to the knife. Here is when things got very tough… Trying to remove so much handle material to be flush with the tang was a nightmare… even using 60 grit sandpaper.

Regretfully, I went out and bought a dremel; however, this made life easy and in no time I had the scales flush to the handle. The dremel was also handy in removing the extra length on the pins. Once this was accomplished, I proceeded to shape the handle to my desired width. After getting the grip to my liking, the last step before sharpening the blade was to soak the handle in boiled linseed oil overnight. Sharpening the blade was a challenge due to the factory edge being uneven. However, after about an hour on my Japanese water stone (1000/6000 grit) I was able to re-profile the blade to have a convex edge. Finishing the edge with a leather strop gave the blade a super sharp edge. I had my doubts with this Chinese steel, but, overall the edge retention on this 440C steel seems acceptable. After spending 2 hours, making feather sticks, cutting and whittling wood and cutting up vegetables—camp related chores—the blade was still sharp enough to slice through paper.  I was quite pleased.

The leather sheath was formed simply by wetting the leather, sticking the knife in the sheath and then forming with my fingers. Now after the leather has dried there is very good rention of the knife when sheathed. To finish off the sheath I lathered it with shoe grease and then buffed it by hand. The knife comes with a mirror like shine, but, you can see that I added etching to the knife blade. This was an interesting process that I will go into at another time. Overall, not bad for less than $26 and about two days investment. Now I have another full tang knife that is functional, looks attractive and one that I would not hesitate to carry. I highly recommend this project to anyone. ~Keep it Sharp.