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> Kooltwist coolant feeding solid carbide drill #29302570
Kooltwist coolant feeding solid carbide drill #29302570
Coolant feeding S.C. Kooltwist high performance drills yield higher penetration compared to non-coolant fed high performance drills when drilling deep holes.
140 double split point provides excellent chip flow over the entire cutting edge.
High helix, right hand cut.
Tool life is increased and peck drilling can be eliminated when used with high pressure coolant.
Larger sizes available see Style 292.
Coating adds lubricity, enhances wear resistance and prevents edge build-up.
TiN coating is recommended for long chipping, low-carbon, ductile and gummy materials.
TiAlN coating is recommended for short chipping, abrasive and high temperature materials.
Allow 1.5 x of flute for chip exit up to 7/16" (11.1mm) and 1 x over 7/16".
Some tool holders and stop screws with a single, central coolant hole may require a coolant groove be added to the shank end of the drill.
