Chicago-Latrobe
0.3150" Cobalt Drill Bit, Straw, 135° point - Chicago-Latrobe 47890
MFR# 47890Series 550ASP
$7.96List $10.21
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Flutes2
CoatingStraw
Description
The Chicago-Latrobe 47890 is a 0.3150" Cobalt drill bit with a Straw finish, 135° point. Suited for stainless steel, hardened materials. Series 550ASP.
Specifications
Coating finishStraw
Coolant throughNo
Cutting directionRight Hand
Drill bit diameter tolerance+0.0000 to -0.0010 in
Drill bit gradeHeavy Duty
Drill bit materialCobalt
Drill bit size0.3150
Drill bit size range0.3000 - 0.3500
Drill point angle degrees135
Flute length2.9528
Flute typeRegular Spiral
Number of flutes2
Overall length4.6063
Point typeSplit Point
Primary workpiece materialStainless Steel; Hardened Materials
Shank diameter0.3150
Shank length1.6535
Shank typeStraight
Specification designationNAS
Specification numberNAS 907-B
Spiral typeRegular
StandardsNAS 907 Type B
Tool performanceHigh Performance
Web configurationTapered
Web thinningWeb-Thinned
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