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Dormer E6511/4 5978353 UNC Combi Taps Spiral Flute 30° 2FL 1/4 inch x 20
MODEL 5978353
$18.70 Each
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Returnable: Yes
Basic Standard
DORMER DIN
Clamping width - inch
0.1969
Clamping width - millimeter (WSC)
6.3
Coating
Steam Tempered
Coating property (CTP)
2
Connection diameter - inch (DCON MS)
0.248
Connection diameter - millimeter (DCON MS)
83
Coolant supply property (CSP)
5
EDP number
273227
Flute count (NOF)
30
Flute Geometry (FDC)
Spiral Flute Geometry
Flute helix angle (FHA)
30
Hand (Cutting direction)
Right
Material
HSS
Material application
P - Steel and cast steel
MID number
5978353
Ordering code ANSI
E6511/4
Overall length - inch (OAL)
3.2677
Overall length - millimeter (OAL)
83
Premachined hole diameter - millimeter (PHD)
5.1
Shank
Cylindrical shank with Square
Tap chamfer style (TCS)
C 2 - 3
Thread diameter - inch (TD)
0.2008
Thread diameter - millimeter (TD)
5.1
Thread diameter size (TDZ)
1/4
Thread form (THFT)
UNC - Unified Coarse
Threading length - inch (THL)
0.6693
Threading length - millimeter (THL)
17
Threads per inch (TPI)
20
Usable length (ULDR)
1.5
Combination drill-tap with a 30° spiral flute, for Unified National Coarse thread UNC 1/4" with 20 TPI and 2B class of fit, dimensions according to DORMER-DIN standard with 6.3mm shank and 5.0mm square drive, HSS with steam tempered surface finish and 30° helix angle for 1.5xD through hole threading in free machining steel.
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