Dormer Pramet A400M8 5970252 118° subland drill with 90° step included angle, designed for M8 thread pre-drilling. This long series drill features an 8.4mm cutting diameter, 169mm overall length, 114mm flute length, and 15mm cylindrical shank. Made from High Speed Steel (HSS) with Steam Tempered finish, it is suitable for steel, cast steel, and cast iron (material groups P and K). Conforms to DIN 8374.

ApplicationAngleIcon_DICT_SEL

Step-drilling (for fasteners) 90°

Basic Standard

DIN 8374

Coating

Steam Tempered

Connection (shank) description

Cylindrical shank

Connection diameter - inch (DCON MS)

0.5906

Connection diameter - millimeter (DCON MS)

15

Cutting diameter - inch (DC)

0.3307

Cutting diameter - millimeter (DC)

8.4

Drill Length

Long

EDP number

34354

Hand (Cutting direction)

Right

Length chip flute - inch (LCF)

4.4882

Length chip flute - millimeter (LCF)

114

Material

HSS

Material application

K - Cast iron, P - Steel and cast steel

MID number

5970252

Ordering code ANSI

A400M8

Overall length - inch (OAL)

6.6535

Overall length - millimeter (OAL)

169

Point Angle (SIG)

118

Spiral form

Standard Spiral

Step included angle (STA)

90

Surface treatement

Steam Tempered

Thread diameter size (TDZ)

M8

Usable length (ULDR)

4