Sharpening Bits Of Different Lengths And Diameters; Aligning And Sharpening Masonry Drill Bits - Drill Master 360X User Manual

Cause
Problem
Too much drill bit is sticking out of the
end of the chuck.
Surface of the
Solution
bit isn't smooth
and/or heavy
Realign the bit. During the re-align-
grinding sound.
ment process, be sure to keep the
White Triangle against the Cam Guide
as you insert the Chuck into the Sharp-
ening Port to set the depth of the bit.
The bit should be pushed up inside the
Chuck and should rotate slightly as the
Chuck is plunged into the Sharpening
Port and contacts the Diamond Sharp-
ening Wheel. Push until the Chuck is
fully inserted into the Port.
Cause
Problem
Bit is misaligned or the Cam failed to
Heel same height or higher
stay in contact with the Cam Guide
than the cutting edge
during sharpening.
Cutting
Heel
Solution
Edge
Carefully repeat the alignment and
sharpening procedure, making sure
Relief
to use light pressure to keep the Cam
Angle
in contact with the Cam Guide during
sharpening.
Cause
Problem
Too much pressure during sharpening,
dirty Chuck, or Chuck not tightened
Bit backing out or
enough.
slipping out of the
jaws when you are
Solution
sharpening
Use just enough pressure to keep the
Cam in contact with the Cam Guide.
If the bit continues to slip, clean the
Chuck as described on Page 19.
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Sharpening Bits of Different
Lengths and Diameters
Drill Bits Of Different Sizes
Too many rotations of a small-diameter bit may result in incorrect
sharpening and too few on a large bit may not sharpen enough.
• 3/32-inch bits—use 2 to 4 half-turns,
• 1/8-inch bits—use 4 to 6 half-turns,
3/8-inch bits—use 16 to 20 half-turns.
•
Large Drill Bits
Large drill bits (3/8" to 1/2") will require more half-turns of the
Chuck. A well-sharpened bit will have a smooth surface from Cut-
ting Edge to Heel. It may take two or three complete sharpenings
(repeat all steps) to re-sharpen a very dull or chipped large drill
bit. A 1/2" bit will need a minimum of 20 half-turns.
Short Drill Bits
The new Chuck design on the 360X enables you to sharpen short
bits as easily as longer ones. Simply align the bit in the Chuck as
normal. Then sharpen the bit using very light pressure and fewer
half-turns. The bit should only briefly contact the Sharpening
Wheel. Note that it is OK for the Chuck Fingers to come into
contact with the Sharpening Wheel. This will not damage the
Chuck.
Aligning and Sharpening
Masonry Drill Bits
To sharpen a masonry bit, you do not turn the Chuck. Instead you
insert the Chuck until it touches the wheel, remove, and repeat on
the other side.
1.
Chuck the masonry bit.
Insert your masonry bit in the Chuck
in the same manner as other bits, but
Carbide Insert
Alignment Finger
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in this case, make sure
the carbide insert
is touching the
end of the Align-
ment Fingers as
shown.
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