Dormer E0611/4NO6 5974933 machine tap with 1/4" x 20 UNC thread, 5.1 flutes, HSS, ANSI standard. Straight flute hand tap for non-ferrous metals and steel/cast steel. Pre-drill hole diameter 7 mm. Connection diameter 2.1/2 inch, clamping width 0.255 inch.

Basic Standard

ANSI

Clamping width - fractional inch (WSC)

0.255

Clamping width - inch

0.191

Coating

Bright

Coating property (CTP)

4

Connection diameter - inch (DCON MS)

2.1/2

Connection diameter - millimeter (DCON MS)

6.48

EDP number

348475

Flute count (NOF)

5.1

Flute Geometry (FDC)

Straight Flute Geometry

Hand (Cutting direction)

Right

Material

HSS

Material application

N - Non-ferrous metals, P - Steel and cast steel

MID number

5974933

Ordering code ANSI

E0611/4NO6

Overall length - fractional inch (OAL)

2.1/2

Overall length - inch (OAL)

2.5

Overall length - millimeter (OAL)

63.5

Premachined hole diameter - inch (PHD)

0.2008

Premachined hole diameter - millimeter (PHD)

7

Shank

Cylindrical shank with Square

Thread diameter size (TDZ)

1/4

Thread form (THFT)

UNC - Unified Coarse

Threading length - inch (THL)

0.65

Threads per inch (TPI)

20

Tolerance limit

H3

Usable length (ULDR)

1.5

Usable Length - inch (LU)

1.063