21/64" Cobalt Drill Bit, Straw, 135° point - Precision Twist Drill 5998156

Precision Twist Drill

21/64" Cobalt Drill Bit, Straw, 135° point - Precision Twist Drill 5998156

MFR# 5998156Series R10CO-R15CO-R18CO

$11.57List $14.84 Save 22%
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Drill size21/64
Flutes2
CoatingStraw

Description

The Precision Twist Drill 5998156 is a 21/64" Cobalt drill bit with a Straw finish, 135° point. Suited for steel. 3-5/16 flute length, 4-5/8 overall length. Series R10CO-R15CO-R18CO.

Specifications

Coating finishStraw
Coolant throughNo
Cutting directionRight Hand
Double marginNo
Drill bit gradeHeavy Duty
Drill bit materialCobalt
Drill bit size in21/64
Drill bit size range0.3000 - 0.3500
Drill point angle degrees135
Flute by diameter ratio10xD
Flute length in3-5/16
Flute typeRegular Spiral
Maximum drilling depth in3-5/16
Number of flats0
Number of flutes2
Overall length in4-5/8
Point typeStandard
Primary workpiece materialSteel
Shank diameter in21/64
Shank length in1-5/16
Shank typeStraight
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsANSI
Tool applicationDrilling
Tool performanceGeneral Purpose
Web configurationTapered
Web thinningWeb-Thinned
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