
Precision Twist Drill
7/16" Cobalt Drill Bit, Straw, 135° point - Precision Twist Drill 5998220
MFR# 5998220Series R10CO-R15CO-R18CO
$19.52List $25.03
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Drill size7/16
Flutes2
CoatingStraw
Description
The Precision Twist Drill 5998220 is a 7/16" Cobalt drill bit with a Straw finish, 135° point. Suited for steel. 4-1/16 flute length, 5-1/2 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 in7/16
Drill bit size range0.4000 - 0.5000
Drill point angle degrees135
Flute by diameter ratio9xD
Flute length in4-1/16
Flute typeRegular Spiral
Maximum drilling depth in4-1/16
Number of flats0
Number of flutes2
Overall length in5-1/2
Point typeStandard
Primary workpiece materialSteel
Shank diameter in7/16
Shank length in1-7/16
Shank typeStraight
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsANSI
Tool applicationDrilling
Tool performanceGeneral Purpose
Web configurationTapered
Web thinningWeb-Thinned
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