Regrind Instructions for Your Cool-Tips

Cool-Tip for Plastics

Use a diamond Grinding Wheel with a grit size no larger than 180 mesh. A Green Silicon Carbide Grinding Wheel should not be used. It will produce a rough cutting edge on the drill-points and will quickly dull.

Use a Flood Coolant to prevent tiny heat check (small slits, cracks, or chunks) which weakens the cutting edge.

In a rigid setup, grind the 120deg. Included angle with a 10deg to 15deg heal relief angle. The grinding should remove a minimum amount of material but enough to produce a clean edge.

The web should be hollow ground to the original shape so that the cutting edge has a positive hook all the way to the center. This can be done by an experienced operator.
 
 

FACTORY RESHARPENING
SERVICE AVAILABLE for
COOL-TIPS

INTERNATIONAL CARBIDE CORPORATION
32022 8th Avenue South
Roy, WA. 98580-9640
Phone: 800-422-8665
Fax: 800-701-2081

Return to the Table of Contents