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SC long twist drill bit DIN 338 - DRL-TWST-MET-DIN338N-SC-D7,7MM SC long twist drill bit DIN 338 - DRL-TWST-MET-DIN338N-SC-D7,7MM
SC long twist drill bit DIN 338 - DRL-TWST-MET-DIN338N-SC-D7,7MM - 1
SC long twist drill bit DIN 338 - DRL-TWST-MET-DIN338N-SC-D7,7MM - 2

SC long twist drill bit DIN 338

Twist drill solid carbide DIN338 5xD type N
DRL-TWST-MET-DIN338N-SC-D7,7MM

Art.-no. 5443000298
EAN 4055375889718
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SC long twist drill bit DIN 338

Art.-no. 5443000298

Prices for customers after login
Quantity
PU
x 1 pcs

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Particularly suitable for drilling in high-strength steels, chromium-nickel steels, chilled cast iron, grey cast iron, cast steel, manganese high carbon steel, bronze, aluminium with high silicon content and other difficult-to-machine materials.
Notice≤ Ø 2.9 mm - 4 surface grinding
≥ Ø 3.0 mm - 6 surface grinding
Product information

Würth Catalogue

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Product code

6156

Material to be processed

Steel, Titanium, Copper, Brass, Aluminium

Standards

DIN 338

Design

Long

Surface

Plain

Max. drilling depth (D)

5xD

Cutting material

SC

Angle of the tip

118 Degree

Number of cutting edges

2 PCS

Coolant supply

External

Diameter (d1)

7.7 mm

Shank style

Cylindrical

Length (l1)

117 mm

Chip flute length (l2)

75 mm

Tolerance of cutting edge diameter

h7

Shank diameter (d2)

7.7 mm

Drill design

6 ground faces

Tolerance of shank diameter

h5

Material of sub-group

General structural steels, Non-alloyed tempering steels < 1000 N/mm², Titanium, Titanium alloys, Copper, Brass, Aluminium, Plastics

Cutting values for solid carbide drill bits, uncoated
For dia. 1-5.9
Material designation Tensile strength Cooling vc f
from to Dia. 1-1.9 Dia. 2-2.9 Dia. 3-5.9
General structural steels < 500 N/mm² E 60 75 0,040 0,054 0,090
500-850 N/mm² E 60 75 0,040 0,054 0,090
Carbon steels < 850 N/mm² E 60 75 0,040 0,054 0,090
850-1000 N/mm² E 55 65 0,040 0,054 0,090
Unalloyed heat-treated steels < 700 N/mm² E 60 75 0,040 0,054 0,090
700-850 N/mm² E 60 75 0,040 0,054 0,090
850-1000 N/mm² E 55 65 0,030 0,045 0,081
Alloyed heat-treated steels 850-1000 N/mm² E 55 65 0,030 0,045 0,081
1000-1200 N/mm² E 50 60 0,030 0,045 0,081
Unalloyed case-hardening steels < 750 N/mm² E 60 75 0,030 0,045 0,081
Alloyed case-hardening steels < 1000 N/mm² E 55 65 0,030 0,045 0,081
1000-1200 N/mm² E 50 60 0,030 0,045 0,081
Nitriding steels < 1000 N/mm² E 55 65 0,030 0,045 0,072
1000-1200 N/mm² E 50 60 0,030 0,045 0,072
Tool steels < 850 N/mm² E 55 65 0,030 0,045 0,072
850-1100 N/mm² E 50 60 0,030 0,045 0,072
1100-1400 N/mm² E 30 40 0,030 0,045 0,072
High-speed steels 850-1200 N/mm² E 30 40 0,030 0,045 0,072
Wear-resistant constructional steel 1350 N/mm² E 20 35 0,030 0,045 0,072
Spring steels < 1200 N/mm² E 20 35 0,030 0,045 0,072
Stainless steels, sulphurated < 700 N/mm² E 30 40 0,030 0,045 0,081
Stainless steels, austenitic < 700 N/mm² E 30 40 0,030 0,045 0,081
< 850 N/mm² E 25 35 0,030 0,045 0,081
Stainless steels, martensitic < 1100 N/mm² E 25 35 0,030 0,045 0,081
Special alloys < 1200 N/mm² E 15 25 0,030 0,045 0,072
Cast iron < 180 HB T/E 70 100 0,030 0,045 0,081
> 180 HB T/E 70 100 0,030 0,045 0,081
Nodular graphite, malleable iron > 180 HB E 65 75 0,030 0,045 0,081
> 260 HB E 65 75 0,030 0,045 0,081
Titanium, titanium alloys < 850 N/mm² E 20 35 0,030 0,045 0,072
Aluminium, aluminium alloys < 530 N/mm² E 150 220 0,040 0,054 0,090
Aluminium, cast aluminium alloys < 10 % Si < 600 N/mm² E 100 180 0,040 0,054 0,090
Aluminium, cast aluminium alloys > 10 % Si < 600 N/mm² E 100 180 0,040 0,054 0,090
Magnesium, magnesium alloys < 280 N/mm² E 150 220 0,040 0,054 0,090
Copper, low-alloy < 350 N/mm² E 100 180 0,040 0,054 0,090
Brass, short-chipping < 600 N/mm² E 100 180 0,040 0,054 0,090
Brass, long-chipping < 600 N/mm² E 100 180 0,040 0,054 0,090
Bronze, short-chipping < 600 N/mm² E 100 180 0,040 0,054 0,090
650-850 N/mm² E 100 180 0,040 0,054 0,090
Bronze, long-chipping < 850 N/mm² E 90 140 0,030 0,045 0,081
850-1200 N/mm² E 90 140 0,030 0,045 0,081
Graphite T 70 100 0,030 0,045 0,081
Legend
E = emulsion
T = dry
vc = cutting speed [m/min]
f = feed [mm/r]
The suggested cutting values are reference values and must be adapted to the respective conditions.
Cutting values for solid carbide drill bits, uncoated
For dia. 6 - 16
Material designation Tensile strength Cooling vc f
from to Dia. 6-8.9 Dia. 9-11.9 Dia. 12-16
General structural steels < 500 N/mm² E 60 75 0,126 0,153 0,207
500-850 N/mm² E 60 75 0,126 0,153 0,207
Carbon steels < 850 N/mm² E 60 75 0,126 0,153 0,207
850-1000 N/mm² E 55 65 0,126 0,153 0,207
Unalloyed heat-treated steels < 700 N/mm² E 60 75 0,126 0,153 0,207
700-850 N/mm² E 60 75 0,126 0,153 0,207
850-1000 N/mm² E 55 65 0,108 0,135 0,180
Alloyed heat-treated steels 850-1000 N/mm² E 55 65 0,108 0,135 0,180
1000-1200 N/mm² E 50 60 0,108 0,135 0,180
Unalloyed case-hardening steels < 750 N/mm² E 60 75 0,108 0,135 0,180
Alloyed case-hardening steels < 1000 N/mm² E 55 65 0,108 0,135 0,180
1000-1200 N/mm² E 50 60 0,108 0,135 0,180
Nitriding steels < 1000 N/mm² E 55 65 0,099 0,126 0,162
1000-1200 N/mm² E 50 60 0,099 0,126 0,162
Tool steels < 850 N/mm² E 55 65 0,099 0,126 0,162
850-1100 N/mm² E 50 60 0,099 0,126 0,162
1100-1400 N/mm² E 30 40 0,099 0,126 0,162
High-speed steels 850-1200 N/mm² E 30 40 0,099 0,126 0,162
Wear-resistant constructional steel 1350 N/mm² E 20 35 0,099 0,126 0,162
Spring steels < 1200 N/mm² E 20 35 0,099 0,126 0,162
Stainless steels, sulphurated < 700 N/mm² E 30 40 0,108 0,135 0,180
Stainless steels, austenitic < 700 N/mm² E 30 40 0,108 0,135 0,180
< 850 N/mm² E 25 35 0,108 0,135 0,180
Stainless steels, martensitic < 1100 N/mm² E 25 35 0,108 0,135 0,180
Special alloys < 1200 N/mm² E 15 25 0,099 0,126 0,162
Cast iron < 180 HB T/E 70 100 0,117 0,144 0,189
> 180 HB T/E 70 100 0,117 0,144 0,189
Nodular graphite, malleable iron > 180 HB E 65 75 0,108 0,135 0,180
> 260 HB E 65 75 0,108 0,135 0,180
Titanium, titanium alloys < 850 N/mm² E 20 35 0,099 0,126 0,162
Aluminium, aluminium alloys < 530 N/mm² E 150 220 0,126 0,153 0,207
Aluminium, cast aluminium alloys < 10 % Si < 600 N/mm² E 100 180 0,126 0,153 0,207
Aluminium, cast aluminium alloys > 10 % Si < 600 N/mm² E 100 180 0,126 0,153 0,207
Magnesium, magnesium alloys < 280 N/mm² E 150 220 0,126 0,153 0,207
Copper, low-alloy < 350 N/mm² E 100 180 0,126 0,153 0,207
Brass, short-chipping < 600 N/mm² E 100 180 0,126 0,153 0,207
Brass, long-chipping < 600 N/mm² E 100 180 0,126 0,153 0,207
Bronze, short-chipping < 600 N/mm² E 100 180 0,126 0,153 0,207
650-850 N/mm² E 100 180 0,126 0,153 0,207
Bronze, long-chipping < 850 N/mm² E 90 140 0,117 0,144 0,189
850-1200 N/mm² E 90 140 0,117 0,144 0,189
Graphite T 70 100 0,117 0,144 0,189

Art.-no.
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