Identifying Correctly Split Drill Bits - Drill Master XP User Manual

3.
Splitting Port

Identifying Correctly Split Drill Bits

(And What to Do With Those That Aren't!)
Correctly Split
Split Line
Undersplit
Split lines do not meet
in the center but
Chisel Edge remains.
Not enough material
has been removed
from the Heel of
the drill bit.
www.drilldoctor.de
Split the point
Press Chuck slowly and firmly into the
Splitting Port until it stops. Remove
the chuck, rotate one-half turn, and
repeat.
Check the tip of the bit carefully to de-
termine that both sides of the bit are
split equally. Compare it to this illus-
tration. If it does not match, study the
information below.
Split lines are nearly straight across.
Solution
More grinding is needed for larger
drill bits. If one side of the bit is under
split, insert the Chuck into the Split-
ting Port again and split both sides.
Push the Chuck into the Port until it
stops. Repeat until the split sides are
equal and look like the correctly split
bit shown above.
51