Chicago-Latrobe
Letter Z High Speed Steel Screw Machine Drill Bit, Coated, 135° point - Chicago-Latrobe 48257
MFR# 48257Series 2159
$16.19List $20.77
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Flutes2
CoatingCoated
Description
The Chicago-Latrobe 48257 is a Letter Z High Speed Steel Screw Machine drill bit with a Coated finish, 135° point. Suited for cast iron, steel. 2 flute length, 3-3/8 overall length. Series 2159.
Specifications
Coating finishCoated
Coolant throughNo
Cutting directionRight Hand
Drill bit diameter tolerance+0.0000 to -0.0010 in
Drill bit size0.4130
Drill bit size letterZ
Drill bit size range0.4000 to 0.4500
Drill length typeScrew Machine
Drill point angle135
Flute length in2
Flute typeSpiral
Number of flutes2
Overall length in3-3/8
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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