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19
Split lines are nearly straight
across.
Identifying Correctly Split Drill Bits
(And What to Do With Those That Aren’t!)
Correctly Split
Solution
More grinding is needed for
larger drill bits. If one side of
the bit is undersplit, insert
the Chuck into the Splitting
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.
Undersplit
Oversplit
Solution
Reinsert the chucked bit into
the Sharpening Port and
remove enough of the tip
until the split tip looks like
the correctly split bit above.
Too much material
removed. Split lines are
joined in the center and
Chisel Edge has been
removed.
Split lines do not meet in
the center but Chisel
Edge remains.
Split line
Not enough material has
been removed from the
Heel of the drill bit.
Summary of Contents for Drill Doctor 500X
Page 1: ...Model 500X Model 750X User s Guide Guía del Usuario Mode d emploi 500X 750X 500X 750X ...
Page 71: ...www drilldoctor com 69 ...
Page 108: ...106 www drilldoctor com Notes Notas Notes ...
Page 109: ...www drilldoctor com 107 Notes Notas Notes ...