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HPT extra-short twist drill bit DIN 1897 - DRL-SPRL-MET-DIN1897-TIALN-HPT-D6,9MM HPT extra-short twist drill bit DIN 1897 - DRL-SPRL-MET-DIN1897-TIALN-HPT-D6,9MM
HPT extra-short twist drill bit DIN 1897 - DRL-SPRL-MET-DIN1897-TIALN-HPT-D6,9MM - 1
HPT extra-short twist drill bit DIN 1897 - DRL-SPRL-MET-DIN1897-TIALN-HPT-D6,9MM - 2

HPT extra-short twist drill bit DIN 1897

Twist drill HSCo-PM DIN 1897 3xD type Forte TiAlN
DRL-SPRL-MET-DIN1897-TIALN-HPT-D6,9MM

Art.-no. 5443810044
EAN 4062856117116
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Price for selected packaging unit
HPT extra-short twist drill bit DIN 1897

Art.-no. 5443810044

Price for selected packaging unit
Quantity
PU
x 1 pcs

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With Forte special profile for optimised chip formation. Particularly suitable for use on machining centres and turning machines. Wide application range in all, preferably long-chipping materials up to approx. 1300 N/mm², also for stainless austenitic steels. Suitable for dry machining in steel materials.
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Product code

900

Material to be processed

Steel, Cast metal, Stainless steel

Standard / drilling depth

DIN 1897 / 3xD

Design

Extra short

Diameter (Ø)

6.9 mm

Length (l1)

74 mm

Chip flute length (l2)

34 mm

Shank style

Cylindrical

Surface

TiAlN

Cutting material

HSCo-PM

Angle of the tip

130 Degree

Suitable for tensile strength up to

1300 N/mm²

Material of sub-group

General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Grey cast iron, Malleable cast iron, Stainless steels < 850 N/mm², Stainless steels > 850 N/mm²

Cutting values for HSS drill bits
For dia. 2.8 to dia. 12
Material designation Tensile strength vc f
from to Dia. 2.8-4.9 Dia. 5-7.9 Dia. 8-11.9 Dia. 12
General structural steels < 500 N/mm² 70 90 0,050 0,130 0,220 0,270
500-850 N/mm² 70 90 0,050 0,130 0,220 0,270
Carbon steels < 850 N/mm² 70 90 0,050 0,130 0,220 0,270
850-1000 N/mm² 40 60 0,030 0,080 0,110 0,170
Unalloyed heat-treated steels < 700 N/mm² 40 60 0,030 0,080 0,110 0,170
700-850 N/mm² 40 60 0,030 0,080 0,110 0,170
850-1000 N/mm² 40 50 0,030 0,060 0,100 0,150
Alloyed heat-treated steels 850-1000 N/mm² 30 40 0,020 0,050 0,090 0,130
1000-1200 N/mm² 30 40 0,020 0,050 0,090 0,130
Unalloyed case-hardening steels < 750 N/mm² 50 70 0,030 0,080 0,110 0,170
Alloyed case-hardening steels < 1000 N/mm² 40 60 0,020 0,050 0,090 0,130
1000-1200 N/mm² 40 50 0,020 0,050 0,090 0,130
Nitriding steels < 1000 N/mm² 30 40 0,020 0,050 0,090 0,130
1000-1200 N/mm² 30 40 0,020 0,050 0,090 0,130
General structural steels < 500 N/mm131 30 40 0,020 0,050 0,090 0,130
500-850 N/mm131 30 40 0,020 0,050 0,090 0,130
General structural steels < 500 N/mm131 25 35 0,020 0,050 0,090 0,130
500-850 N/mm131 25 35 0,020 0,050 0,090 0,130
Carbon steels < 850 N/mm131 10 20 0,020 0,050 0,090 0,130
850-1000 N/mm131 10 15 0,020 0,050 0,090 0,130
Stainless steels, sulphurated < 700 N/mm² 18 28 0,020 0,050 0,090 0,130
Stainless steels, austenitic < 700 N/mm² 15 25 0,020 0,050 0,090 0,130
< 850 N/mm² 15 25 0,020 0,050 0,090 0,130
Stainless steels, martensitic < 1100 N/mm² 12 20 0,020 0,050 0,090 0,130
Special alloys < 1200 N/mm² 10 15 0,020 0,050 0,090 0,130
Cast iron < 180 HB 70 90 0,050 0,130 0,220 0,270
> 180 HB 50 70 0,040 0,110 0,170 0,220
Nodular graphite, malleable iron > 180 HB 70 90 0,050 0,130 0,220 0,270
> 260 HB 50 70 0,040 0,110 0,170 0,220
Key
vc = cutting speed [m/min]
f = feed [mm/r]
The suggested cutting values are reference values and must be adapted to the respective conditions.

Art.-no.
Cust. Mat. No.

Hazardous Material

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