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UNF Machine Tap Straight Flute
Material ID: 5975099

Straight flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 1.1/8" with 12 TPI and 2B class of fit, dimensions according to DIN 374 standard with 22.0mm shank and 18.0mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel

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Product Feature

Bright (uncoated)

Thread Form, Unified Fine

DIN 374 – MF Thread Standard

Internal Inch Thread Medium Class of Fit

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Cobalt Powder Metal Tool Material

Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)

Straight Flute Geometry

Right Hand Rotation / Cutting

Product Detail
Product nameE2781.1/8
Product number (SAP)86015974
EAN number7320760089590
Ordering code ANSIE2781.1/8
Thread diameter size (TDZ)1.1/8
Thread diameter - millimeter (TD)28.58 mm
Threads per inch (TPI)12
Overall length - millimeter (OAL)150 mm
Overall length - inch (OAL)5.9055 inch
Threading length - millimeter (THL)28 mm
Threading length - inch (THL)1.1024 inch
Connection diameter - inch (DCON MS)0.8661 inch
Connection diameter - millimeter (DCON MS)22 mm
Flute count (NOF)4
Clamping width - inch (WSC)0.7087 inch
Clamping width - millimeter (WSC)18 mm
Clamping Length - inch (LCS)0.8268 inch
Clamping Length - millimeter (LSC)21 mm
Premachined hole diameter - inch (PHD)1.0433 inch
Premachined hole diameter - millimeter (PHD)26.5 mm
Gross weight - grams435.6
Cutting Conditions