Belgium-English (EN)-mm
E398UNF1/4
E398UNF1/4
E398UNF1/4
E398UNF1/4
Main properties
Material ID: 8464230
Product Code: E398UNF1/4
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Description

Thread size UNF 0.25 inch - 28 TPI, with thread tolerance class 93707, and maximum threading depth 0.625 inches.

Product Feature

Titanium Carbonitride Coating
Thread Form, Unified Fine
DIN 2184-1 – Tap Standard
Internal Inch Thread Medium Class of Fit (with increased pitch diameter)
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 nameE398UNF1/4
Ordering code ANSIE398UNF1/4
EAN number3603607095713
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
Usable Length - millimeter (LU)30 mm
ISOE398UNF1/4
ANSIE398UNF1/4
Brand NameDormer Pramet
Net weight - grams20
Gross weight - grams20
Product number (SAP)86046818
EDP number8464230

Cutting Conditions