1/2" Cobalt Drill Bit, Straw, 135° point - Precision Twist Drill 5998136

Precision Twist Drill

1/2" Cobalt Drill Bit, Straw, 135° point - Precision Twist Drill 5998136

MFR# 5998136Series R10CO-R15CO-R18CO

$24.32List $31.19 Save 22%
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Drill size1/2
Flutes2
CoatingStraw

Description

The Precision Twist Drill 5998136 is a 1/2" Cobalt drill bit with a Straw finish, 135° point. Suited for steel. 4-1/2 flute length, 6 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 in1/2
Drill bit size range0.5000 - 0.6500
Drill point angle degrees135
Flute by diameter ratio9xD
Flute length in4-1/2
Flute typeRegular Spiral
Maximum drilling depth in4-1/2
Number of flats0
Number of flutes2
Overall length in6
Point typeStandard
Primary workpiece materialSteel
Shank diameter in1/2
Shank length in1-1/2
Shank typeStraight
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsANSI
Tool applicationDrilling
Tool performanceGeneral Purpose
Web configurationTapered
Web thinningWeb-Thinned
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