Relief Angle; Questions And Answers - Drill Master XP User Manual

Questions and Answers

1. Question:
Why was my drill bit sharpened improperly?
Answer:
The most common cause of improper sharpening is improper drill
bit alignment.
Key causes are:
Chuck not pushed all the way into the Sharpening Port.
1.
Drill not aligned in the Chuck Jaws correctly.
2.
The type of drill requires an angle adjustment to achieve the
3.
desired Chisel and Relief Angles. Try using the Variable Align-
ment to adjust the Chisel and Relief Angle (see page 55).
Chuck is dirty or the bit slipped out of alignment.
4.
See page 60, "Cleaning the Chuck."
Too many rotations of a small-diameter bit results in incorrect
5.
sharpening, and too few on a large bit may not sharpen enough.
See page 53 "Drill Bits of Different Lengths, Diameters, and
Types."
2. Question:
When I aligned the drill bit and sharpened it, why was no mate-
rial removed?
Answer:
This happens when the bit is not protruding out of the Chuck far
enough. You may have allowed the Alignment Button to knock
the drill back into the Chuck when aligning the bit. Carefully rea-
lign the bit in the Alignment Port again. Make sure the drill bit is
pushed all the way against the Drill Stop before you release the
Alignment Button.
3. Question:
I sharpened the bit. Why will it not cut?
Answer:
This happens when the Heel on the bit is higher than the Cutting
Edge (negative relief). To correct this problem, follow the instruc-
tions in "Using the Variable Alignment to Adjust the Chisel and
Relief Angle" on page 55.
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