Toolmaking
September 1, 2007
Entry Details
 

# 527
Daniel Linkenheld
West Grey Township, ON
Dimensions (inches):  
  Width:   7/8
  Height:   8 1/4
  Depth:   1 1/2
Materials:   Handle is of tigertail hard maple with a light danish oil walnut stain
Blade is a forged high carbon steel (garage door spring)
Collar is 1/2 inch copper tubing.
This is an overall shot of the chisel.  My concept for it was that I couldn't find a chisel that worked when I was making carved Celtic Knots on wooden boxes.  The application for the chisel is to get into the corners created by intersecting lines of a Celtic Knot where the acute angle formed is less than 90 degrees.  
The actual blade width is 3/8 of an inch with a double bevel which allows you to do a two sided under cut at the angle created by the two intersecting lines.  The cranked neck allows for a better angle of attack.
The handle is turned and flattened on the two sides to stop it from rolling off of the bench and the wood choice is both durable as well as asthetically pleasing.  
After the stain was allowed to dry I gave it a paste wax finish.
 

The second picture depicts a different view of this chisel.
I'm a detective with the Ontario Provincial Police working in the Historical Homicide Unit out of London.  I'm presently in my 28th year of service.
In order to relax I've taken up woodcarving as well as blacksmithing.  I'm fond of carving faces and animals into the top of walking sticks as well as making boxes from our native woods and carving Celtic Knots into them.
My blacksmithing came as an evolution from my woodcarving since I've had difficulty in finding the right tools for the right job.  This chisel is just one of the many tools that I've made to assist me in my woodworking.
My wife asked me one day what would help you in getting the tools you want? I answered, becoming a blacksmith.  She bought me some lessons with a local blacksmith she found and I haven't looked back since.
 
This image depicts the double bevel on the tool allowing for the double cut with one push.
The blade as mentioned is made from a spring steel of an old garage door system.  This type of steel is very durable and when shaped, hardened and tempered takes a very good edge.  
The creation of the blade took just over an hour in the forge.  It was then annealed and the scale was removed.  The bevels were put on with a fine file and polished to a mirror finish.  The blade tip was re-heated with a propane torch to a cherry red colour (to where the steel was no longer magnetic) and quenched in 10W30 clean oil.  I went over the blade with scotch brite to reveal a shiney steel and took the propane torch to the first bend behind the blade and allowed the blade to come to a straw yellow colour and quenched it.  The blade was re-sharpened and polished.  The handle end of the blade was given a long square taper about 2 inches long.
 

This is the chisel with its last side revealed.
The handle was finished off on the lathe and had a hole drilled into it just smaller that the diameter of the blade.  The copper collar was pressure fitted on the handle and re-mounted on the lathe in order to polish everything up.
I mounted the blade in my bench vise holding it between some 8 oz scrap leather.  I put the handle over the tapered section of the blade and pounded it down with a wooden mallet.  The collar and pre-drilled hole in the handle make for a really tight fit without splitting the handle.
I hope you accept my project, its really a slick little tool.
 

Judges Comments
CS : Nice work on the handle. Good wood. Good in hand. And the flats on the handle are a great touch.
Clarence : Handy. Well made.

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