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Dormer Pramet A7778.4 (MID 5971297) jobber length drill, 8.4mm diameter, 117mm overall length, 75mm flute length, 135° split point, standard spiral, cylindrical shank. Cobalt High Speed Steel (HSS-E) with Bronze coating, steam tempered surface treatment. Conforms to DIN 338. Suitable for cast iron, steel, and high-temperature alloys.

Name: Dormer Pramet A7778.4 (MID 5971297) jobber length drill, 8.4mm diameter, 117mm overall length, 75mm flute length, 135° split point, standard spiral, c
Brand: Dormer Pramet
Price: 15.24 USD
Availability: InStock
Rating: 5.0 (3 reviews)

MODEL 5971297

BRAND

Dormer Pramet

SKU

6072773

WEIGHT

0.088 lb

UOM

each

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$15.24 Each

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Typically Ships in: 1 day

Returnable: Yes

ApplicationAngleIcon_DICT_SEL

Drill point 135°

Basic Standard

DIN 338

Coating

Bronze

Connection (shank) description

Cylindrical shank

Connection diameter - millimeter (DCON MS)

8.4

Cutting diameter - inch (DC)

0.3307

Cutting diameter - millimeter (DC)

8.4

Cutting diameter tolerance class (TCDC)

Drill Length

Jobber

EDP number

375587

Hand (Cutting direction)

Right

Length chip flute - inch (LCF)

2.9528

Length chip flute - millimeter (LCF)

Material

HSS-E

Material application

K - Cast iron, P - Steel and cast steel, S - High-temperature alloys

MID number

5971297

Ordering code ANSI

A7778.4

Overall length - inch (OAL)

4.6063

Overall length - millimeter (OAL)

117

Point Angle (SIG)

135

Spiral form

Standard Spiral

Surface treatement

Steam Tempered

Usable length (ULDR)

Recommended for use in difficult materials and applications, the A777 drill from Dormer has a 135 degree split point which helps to self-center the drill and reduces the amount of force needed to drill the hole, whilst the bronze oxide finish helps stop work piece material from sticking to the cutting edge of the drill.

The A777 is made from premium high speed cobalt material which means it can be used for drilling hard materials, including tool steels.

Producing more accurate sized holes with a better finish, the A777 drill really is a great performer.

*Note: 4 Facet Point up to 1.4mm