The inexpensive high speed steel tool bit is easy to sharpen. The toolholder's built-in back and side rake allow for efficient cutting in a variety of materials including steel and aluminum. Facing and turning can be accomplished with the holder in one orientation. This ensures that a very sharp edge is always just a few minutes and cents away.
Free samples are available to those in positions of high visibility such as authors published in The Home Shop Machinist or similar magazines.
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The toolholder comes with a bit that is ground on both ends. One end is ground to provide a positive lead angle of 45 degrees for both turning and facing (this unconventional geometry has two noses). The other end is ground to provide a -5 degree lead angle, for turning, facing, and creating a shoulder. We do sell ground bits separately, but the diligent amateur machinist should be able to set up a sharpening device such as a bench grinder or disk sander, and create and sharpen his or her own bits without great effort. We will be perfectly content if we never sell a ground bit except with a new toolholder.
One of the essential characteristics of the Wimberley toolholder is that very little material is required to renew the edge. Therefore, if you think you're going to take a long time to develop your sharpening skills, you can rest assured that you still will probably not grind away much of the tool bit. If you buy a single toolholder and want an extra unground bit to practice on, that may make sense. You probably won't need much more than this, however.
Extra Tool Bits
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Made in USA and Assembled in Charlottesville, VA