Chicago-Latrobe
#51 High Speed Steel Screw Machine Drill Bit, Coated, 135° point - Chicago-Latrobe 49421
MFR# 49421Series 159
$1.67List $2.14
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Flutes2
CoatingCoated
Description
The Chicago-Latrobe 49421 is a #51 High Speed Steel Screw Machine drill bit with a Coated finish, 135° point. Suited for cast iron, steel. 11/16 flute length, 1-11/16 overall length. Series 159.
Specifications
Coating finishCoated
Coolant throughNo
Cutting directionRight Hand
Drill bit diameter tolerance+0.0000 to -0.0005 in
Drill bit gradeHeavy Duty
Drill bit size0.0670
Drill bit size range0.0000 to 0.1000
Drill bit size wire#51
Drill length typeScrew Machine
Drill point angle135
Flute length in11/16
Flute typeSpiral
Number of flutes2
Overall length in1-11/16
Point typeSplit
Primary workpiece materialCast Iron; Steel
Shank typeStraight-Cylindrical
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsISO
Tool materialHigh Speed Steel
Tool performanceHeavy-Duty
Web configurationParallel
Web thinningWeb-Thinned
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