Chicago-Latrobe
5/16" High Speed Steel Screw Machine Drill Bit, Coated, 135° point - Chicago-Latrobe 49220
MFR# 49220Series 159
$4.08List $5.23
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Drill size5/16
Flutes2
CoatingCoated
Description
The Chicago-Latrobe 49220 is a 5/16" High Speed Steel Screw Machine drill bit with a Coated finish, 135° point. Suited for cast iron, steel. 1-5/8 flute length, 2-13/16 overall length. Series 159.
Specifications
Coating finishCoated
Coolant throughNo
Cutting directionRight Hand
Drill bit diameter tolerance+0.0000 to -0.0010 in
Drill bit gradeHeavy Duty
Drill bit size in5/16
Drill bit size range0.3000 to 0.3500
Drill length typeScrew Machine
Drill point angle135
Flute length in1-5/8
Flute typeSpiral
Number of flutes2
Overall length in2-13/16
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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