United Kingdom-English (EN)-Metric
EX311/4
EX311/4
EX311/4
EX311/4
Main properties
Material ID: 5974146
ISO Code: EX311/4
AvailabilityIn stock
Availability in Distribution Centres
Europe Distribution Center(default): 106
Americas Distribution Center: 0
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Description

Spiral flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 1/4" with 28 TPI and 2B class of fit, dimensions according to DIN 2184-1 standard with 7.0mm shank and 5.5mm square drive, powder metallurgical HSS-E with steam tempered surface finish and 45° helix angle for 2.5xD blind hole threading in alloy steel


Product Feature

Steam Tempered (Steam Oxide) Surface Treatment
Thread Form, Unified Fine
Internal Inch Thread Medium Class of Fit
Blind Hole Application
2.5×D Usable Tool Depth to Diameter Ratio
High Speed Cobalt Powder Metal Tool Material
Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)

Product Detail

DescriptionValue
Product nameEX311/4
Ordering code ANSIEX311/4
EAN number7320760168455
Clamping Length - millimeter (LSC)8 mm
Clamping width - millimeter (WSC)5.5 mm
Connection diameter - millimeter (DCON MS)7 mm
Flute count (NOF)3
Overall length - millimeter (OAL)80 mm
Premachined hole diameter - millimeter (PHD)5.5 mm
Thread diameter - millimeter (TD)6.35 mm
Thread diameter size (TDZ)1/4
Threading length - millimeter (THL)10 mm
Threads per inch (TPI)28
Tolerance limitH4
Usable Length - millimeter (LU)30 mm
ISOEX311/4
ANSIEX311/4
Brand NameDormer Pramet
Net weight - grams23.7
Gross weight - grams23.8
Product number (SAP)86017735
EDP number0168455

Cutting Conditions