Dormer E6531/2 5978392 NPT spiral flute machine tap, 1/2" x 14 thread, 27° helix, HSS, ANSI standard. For steel and cast steel (P). 27 flutes, 1.3/8" overall length, 0.7087" thread diameter, 4.3/8" connection diameter, 0.687" clamping width.

Basic Standard

ANSI

Clamping width - fractional inch (WSC)

0.687

Clamping width - inch

0.515

Coating

Bright

Coating property (CTP)

2

Connection diameter - inch (DCON MS)

0.687

Connection diameter - millimeter (DCON MS)

17.45

EDP number

297261

Flute count (NOF)

27

Flute Geometry (FDC)

Spiral Flute Geometry

Flute helix angle (FHA)

27

Hand (Cutting direction)

Right

Material

HSS

Material application

P - Steel and cast steel

MID number

5978392

Ordering code ANSI

E6531/2

Overall length - fractional inch (OAL)

4.3/8

Overall length - inch (OAL)

4.375

Overall length - millimeter (OAL)

111.1

Shank

Cylindrical shank with Square

Thread diameter - millimeter (TD)

0.7087

Thread diameter size (TDZ)

1/2

Thread form (THFT)

NPT - National taper pipe

Threads per inch (TPI)

14

Usable length (ULDR)

1.5

Usable Length - fractional inch (LU)

1.3/8