A Simple Drill Grinding Aid

Model Engineers' Workshop|May 2020

A Simple Drill Grinding Aid
A newcomer to our hobby was having trouble sharpening drills, so Howard Lewis made a simple aid for him
Howard Lewis

This is NOT a precision drill grinding jig, purely an aid. It needs to be set (preferably by clamping) parallel to the face of the grinding wheel.

The grinding is manual, and totally under the control of the operator.

In use, the drill is laid in the vee and one lip brought into gentle contact with the wheel and rotated. When that face is satisfactory, the second face is given the same treatment.

It is important that both lips of the drill are the same length, if it is to cut to size. Unequal lengths will bring the point off centre, resulting in an oversize hole.

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May 2020