Drill Doctor 400 - Manual (Page 15)

13
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Aligning and Sharpening Masonry Drill Bits
1.
3.
5.
Note: The Drill Doctor will place a curved grind on the carbide
insert, altering the appearance of the factory point.
4.
Now, sharpen the bit in the
Sharpening Hole. Always use an
even number of half-turns when
sharpening. Start with four half-
turns and then add as many half-
turns as needed.
While looking through the win-
dow, start with the carbide tip of
the bit straight up and down, and
then turn it 1/8 turn to the right
(the carbide tip should point to
between the 1:00 and 2:00
o’clock position when looking at
a clock face).
Push the Alignment Button back
to the housing and hold it in
through Step 4. Insert the
chucked drill bit to the
stop. Bit Clamps are
not used when
aligning masonry
bits.
Insert your masonry bit in the
Chuck in the same manner as
other bits (See page 5).
Tighten the Chuck Knob and
remove the chuck from the Align-
ment Hole. Release the Align-
ment Button and tighten the
Chuck.
12:00
1:00
2:00
3:00
6:00
9:00
2.