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UNF Hand Tap Straight Flute
Material ID: 5975562

Set of straight flute serial taps NO9 for Unified National Fine thread UNF 1/4" with 28 TPI and 2B class of fit, consisting of 1 tap with a truncated thread profile and 3.5-5xP second lead and 1 tap with a 2-3xP plug lead, dimensions according to DIN 2181 standard with 6.0mm shank and 4.9mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining steel and non-ferrous metals

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Product Feature

Bright (uncoated)

Thread Form, Unified Fine

DIN 2181 – Hand Tap Standard

Internal Inch Thread Medium Class of Fit

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Steel Tool Material

B 3.5-5, C 2-3

Straight Flute Geometry

Right Hand Rotation / Cutting

Product Detail
Product nameE1111/4NO9
Product number (SAP)86015549
EAN number7320760083055
Ordering code ANSIE1111/4NO9
Thread diameter size (TDZ)1/4
Thread diameter - millimeter (TD)6.35 mm
Threads per inch (TPI)28
Overall length - millimeter (OAL)56 mm
Overall length - inch (OAL)2.2047 inch
Threading length - millimeter (THL)17 mm
Threading length - inch (THL)0.6693 inch
Connection diameter - inch (DCON MS)0.2362 inch
Connection diameter - millimeter (DCON MS)6 mm
Flute count (NOF)3
Clamping width - inch (WSC)0.1929 inch
Clamping width - millimeter (WSC)4.9 mm
Premachined hole diameter - inch (PHD)0.2165 inch
Premachined hole diameter - millimeter (PHD)5.5 mm
Gross weight - grams25.6