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Determining if Replacing the Diamond
Sharpening Wheel is Required
You can double the life of the diamond sharpening wheel by
reversing it before you replace it. The sharpening wheel supplied
with the Drill Doctor
®
is designed to give you long and trouble
free service, with an average of more than 200 sharpenings for
3/32" to 1/2" drill bits.
The diamond wheel may need to be changed if:
1. Sharpened drill bits burn or turn blue no matter how fast
or slow you rotate the chuck.
2. When touching the sharpening wheel (with the machine
unplugged), the lower portion feels too smooth
(nonabrasive).
3. When sharpening the drill bit, it takes too many half-
rotations to sharpen.
Contact the store or dealer where you purchased the Drill
Doctor,
®
or contact Drill Doctor
®
directly, to purchase a
replacement sharpening wheel.
Jaw Alignment
Grooves
Jaws
Chuck
Knob
Cleaning the Chuck
With compressed air, blow out the
Chuck from the Knob end. After 20 to
25 sharpenings, you will need to
disassemble the Chuck for cleaning:
• Keep the Chuck upright (vertical)
and remove the Chuck Knob.
• Do not remove the springs or Jaws.
• Use a small brush or rag to remove
all grinding particles.
• Reassemble with all of the Jaws in
their respective grooves. If some
Jaws do not slip into their grooves
on the inside of the Chuck, reach
through the hole in the bottom of
the Chuck Knob (or use a paper clip
or small bit) and align them.
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