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Counterbore DIN 373, medium - CNTBRE-DIN373-HSS-MEDIUM-M4 Counterbore DIN 373, medium - CNTBRE-DIN373-HSS-MEDIUM-M4
Counterbore DIN 373, medium - CNTBRE-DIN373-HSS-MEDIUM-M4 - 1
Counterbore DIN 373, medium - CNTBRE-DIN373-HSS-MEDIUM-M4 - 2

Counterbore DIN 373, medium

Counterbore, DIN 373, medium
CNTBRE-DIN373-HSS-MEDIUM-M4

Art.-no. 0694151004
EAN 4056807537313
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Price for selected packaging unit
Counterbore DIN 373, medium

Art.-no. 0694151004

Price for selected packaging unit
Quantity
PU
x 1 pcs

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For all ferrous and non-ferrous metals, hard and soft plastics. For use in through holes according to DIN 273 quality grade "medium" for single and series production. For countersinking hexagon socket screws DIN 912, 6912, 7984 and cheese head screws ISO 1207 (DIN 84).
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Product code

2150

Quality grade

Medium

Material to be processed

Steel, Cast metal, Stainless steel, Copper, Brass, Aluminium, Plastic

Suitable for screw

M4

Diameter of tenon (d1)

4.5 mm

Spot-facer diameter (d2)

8.0 mm

Shank diameter (d3)

5.0 mm

Length (l1)

71 mm

Length of head (l2)

14 mm

Number of cutting edges (Z)

3 PCS

Standards

DIN 373

Cutting material

HSS

Surface

Plain

Shank style

Cylindrical

Quality

Würth-Standard

Material of sub-group

General structural steels, Non-alloyed tempering steels < 1000 N/mm², Alloyed tempering steels < 1000 N/mm², Nitriding steels < 1300 N/mm², Grey cast iron, Malleable cast iron, Stainless steels < 850 N/mm², Stainless steels > 850 N/mm², Copper, Brass, Aluminium, Plastics

Cutting values for HSS countersinks
For M4–M12
Material designation Tensile strength vc f
From To M4 M5 M6 M8 M10 M12
General structural steels < 500 N/mm² 26 30 0,104 0,120 0,126 0,132 0,140 0,160
500–850 N/mm² 25 28 0,093 0,100 0,105 0,110 0,120 0,140
Machining steels < 850 N/mm² 25 28 0,093 0,100 0,105 0,110 0,120 0,140
850–1000 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
Unalloyed heat-treated steels < 700 N/mm² 25 28 0,093 0,100 0,105 0,110 0,120 0,140
700–850 N/mm² 25 28 0,093 0,100 0,105 0,110 0,120 0,140
850–1000 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
Alloyed heat-treated steels 850–1000 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
1000–1200 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
Non-alloyed case-hardening steels < 750 N/mm² 25 28 0,093 0,100 0,105 0,110 0,120 0,140
Alloyed case-hardening steels < 1000 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
1000–1200 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
Nitriding steels < 1000 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
1000–1200 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
Tool steels < 850 N/mm² 18 25 0,070 0,080 0,084 0,088 0,100 0,120
850–1100 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
1100–1400 N/mm² 2 5 0,035 0,040 0,042 0,044 0,050 0,060
High-speed steels 850–1200 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
Wear-resistant constructional steel 1350 N/mm² 2 5 0,035 0,040 0,042 0,044 0,050 0,060
Spring steels < 1200 N/mm² 6 10 0,046 0,050 0,053 0,055 0,090 0,080
Stainless steels, sulphurated < 700 N/mm² 4 10 0,058 0,060 0,063 0,066 0,070 0,080
Stainless steels, austenitic < 700 N/mm² 4 10 0,058 0,060 0,063 0,066 0,070 0,080
< 850 N/mm² 4 10 0,058 0,060 0,063 0,066 0,070 0,080
Stainless steels, martensitic < 1100 N/mm² 4 10 0,058 0,060 0,063 0,066 0,070 0,080
Cast iron < 180 HB 15 24 0,116 0,120 0,126 0,132 0,160 0,200
> 180 HB 9 15 0,081 0,080 0,084 0,088 0,120 0,160
Spheroidal graphite, malleable iron > 180 HB 9 15 0,081 0,080 0,084 0,088 0,120 0,160
> 260 HB 9 15 0,081 0,080 0,084 0,088 0,120 0,160
Aluminium, aluminium alloys < 530 N/mm² 50 90 0,139 0,140 0,147 0,154 0,180 0,220
Aluminium, cast aluminium alloys < 10% Si < 600 N/mm² 25 40 0,116 0,120 0,126 0,132 0,140 0,180
Magnesium, magnesium alloys < 280 N/mm² 50 90 0,139 0,140 0,147 0,154 0,180 0,220
Copper, low-alloyed < 350 N/mm² 25 40 0,116 0,120 0,126 0,132 0,140 0,180
Brass, short-chipping < 600 N/mm² 50 80 0,139 0,140 0,147 0,154 0,180 0,200
Brass, long-chipping < 600 N/mm² 30 50 0,139 0,140 0,147 0,154 0,180 0,200
Bronze, short-chipping < 600 N/mm² 50 80 0,139 0,140 0,147 0,154 0,180 0,200
650–850 N/mm² 50 80 0,139 0,140 0,147 0,154 0,180 0,200
Bronze, long-chipping < 850 N/mm² 30 50 0,139 0,140 0,147 0,154 0,180 0,200
850–1200 N/mm² 30 50 0,139 0,180 0,189 0,198 0,180 0,200
Legend
vc = cutting speed [m/min]
f = feed (mm/r)
The suggested cutting values are reference values and must be adapted to the respective conditions.

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