21/64" Solid Carbide Drill Bit, Multi-layer, 140° point - OSG HP255-3280

OSG

21/64" Solid Carbide Drill Bit, Multi-layer, 140° point - OSG HP255-3280

MFR# HP255-3280Series HP255

$110.05List $141.14 Save 22%
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Drill size21/64
Flutes2
CoatingMulti-layer

Description

The OSG HP255-3280 is a 21/64" Solid Carbide drill bit with a Multi-layer finish, 140° point. Suited for steel, cast iron, hardened materials. Series HP255.

Specifications

Coating finishMulti-layer
Coolant throughYes
Cutting directionRight Hand
Drill bit diameter tolerance+0.006 to +0.021 mm
Drill bit gradeHigh Performance
Drill bit materialSolid Carbide
Drill bit size in21/64
Drill bit size range0.3000 - 0.3500
Drill point angle degrees140
Flute by diameter ratio5xD
Flute length2.4016
Flute typeRegular Spiral
Number of flutes2
Overall length4.0551
Point typeR-Thinned
Primary workpiece materialSteel; Cast Iron; Hardened Materials
Shank diameter (mm)10
Shank typeStraight
Spiral typeRegular
Tool applicationBlind Hole; Cross Hole; Drilling; Self-Centering
Tool performanceHigh Performance
Web configurationTapered
Web thinningR-Thinned
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