home *** CD-ROM | disk | FTP | other *** search
- From: markw@hpcss01.cup.hp.com (Mark Williams)
- Date: Wed, 27 Jan 1993 18:05:16 GMT
- Subject: Re: HOCK INFO PLEASE
- Message-ID: <64770047@hpcss01.cup.hp.com>
- Organization: Hewlett Packard, Cupertino
- Path: sparky!uunet!charon.amdahl.com!amdahl!rtech!pacbell.com!ames!elroy.jpl.nasa.gov!swrinde!gatech!paladin.american.edu!howland.reston.ans.net!usc!sdd.hp.com!hpscit.sc.hp.com!hplextra!hpcss01!markw
- Newsgroups: rec.woodworking
- References: <1993Jan22.152022.1@qis.dofasco.ca>
- Lines: 19
-
- Hock plane blades are excellent replacement blades available in sizes for most
- hand planes, from small block planes to 2-5/8" jointers. They are made from
- very high carbon steel which is very hard (Rockwell hardness 62).
- They can be sharpened keenly and hold an edge very well.
-
- Interestingly, they are made by a small company in Mendocino, Ca. They are
- widely distributed, ranging in price from $18-25. Sources are Garrett Wade,
- Whole Earth Access, Woodworkers Supply.
-
- Note that for hand tools, high carbon steel give the sharpest edge but is
- brittle. For this reason, old plane blades and modern Japanese plane blades
- were laminated: high carbon cutting edge, mild steel or iron backing. This
- was and still is a good way to build a hand plane blade. With careful
- tempering, a blade can be made of high carbon steel which is very hard
- at the cutting edge, but softer and more resilient for the rest of the blade.
- All files are made that way, high carbon steel tempered hard for cutting
- but annealed soft at the handle. You can see the discoloration on most
- new files from the annealing on the handle.
-
-