Identifying Correctly Sharpened Drill Bits - DRILL DOCTOR XP Mode D'emploi

The number of turns needed to sharpen the
bit depends on the size.
Different size drill bits may require a different number of rota-
tions. Continue to sharpen until you no longer hear grinding noise.
This will result in a Chisel Edge that is clean and straight and the
entire surface from the Cutting Edge to the Heel is finely ground.

Identifying Correctly Sharpened Drill Bits

(and what to do with those that aren't!)
Correctly Sharpened Bits
Cutting
Heel
Edge
Incorrectly Sharpened Bits
Problem
The Chisel Edge
is ground flat.
48
The entire surface from the Cutting
Chisel
Edge to the Heel will have a finely
Point
ground surface without ridges or in-
dentations. The Heel will always be
lower than the Cutting Edge (positive
relief).
Cause
Chuck Jaws did not grip drill bit prop-
erly in the aligning process (Page 45).
Solution
Realign the bit by carefully following
steps 1 through 5 on pages 45-47.
www.drilldoctor.de