Dormer Pramet J2354.8-20 6821334 UNC thread mill, 1/4" x 20 thread size, 4.8mm cutting diameter, 57mm overall length, solid carbide (HM), 3-flute, 10° spiral flute helix angle, with oil feed coolant supply. Suitable for threading hardened materials, cast iron, stainless steel, non-ferrous metals, steel, and high-temperature alloys. DORMER standard.

Basic Standard

DORMER

Coating

Alcrona Pro

Coating property (CTP)

1

Connection diameter - inch (DCON MS)

0.2362

Connection diameter - millimeter (DCON MS)

6

Coolant exit style (CXSC)

axial concentric exit

Coolant supply property (CSP)

1

Cutting diameter - inch (DC)

0.189

Cutting diameter - millimeter (DC)

4.8

Depth of cut maximum - inch (APMX)

0.5512

Depth of cut maximum - millimeter (APMX)

14

EDP number

46821334

Flute count (NOF)

3

Flute Geometry (FDC)

Spiral Flute Geometry

Flute helix angle (FHA)

10

Hand (Cutting direction)

Right

Material

HM

MID number

6821334

Ordering code ANSI

J2354.8-20

Overall length - inch (OAL)

2.2441

Overall length - millimeter (OAL)

57

Shank

Cylindrical shank DIN 6535 HB

Thread diameter size (TDZ)

1/4

Thread form (THFT)

UNC - Unified Coarse

Threads per inch (TPI)

20

Usable length (ULDR)

2