Chicago-Latrobe

Letter T HSS Drill Bit, TiAlN, 135° point - Chicago-Latrobe 42790

MFR# 42790Series 150ASP-TA

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Flutes2
CoatingTiAlN

Description

The Chicago-Latrobe 42790 is a Letter T HSS drill bit with a TiAlN finish, 135° point. Suited for stainless steel, cast iron. 3-1/2 flute length, 4-7/8 overall length. Series 150ASP-TA.

Specifications

Coating finishTiAlN
Coolant throughNo
Cutting directionRight Hand
Drill bit diameter tolerance-0.0010 to 0.0000 in
Drill bit gradeHeavy Duty
Drill bit materialHSS
Drill bit size0.3580
Drill bit size letterT
Drill bit size range0.3500 - 0.4000
Drill point angle degrees135
Flute length in3-1/2
Flute typeRegular Spiral
Number of flutes2
Overall length in4-7/8
Point typeSplit Point
Primary workpiece materialStainless Steel; Cast Iron
Shank diameter in1-3/8
Shank length1.3750
Shank typeStraight
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsNAS 907 Type B
Tool performanceHigh Performance
Web configurationTapered
Web thinningWeb-Thinned

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