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Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM
Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM - 1
Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM - 2
Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM - 3
Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM - 4
Countersink, EU HSCo, DIN 335C, 90° DIN 335C - CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM - 5

Countersink, EU HSCo, DIN 335C, 90° DIN 335C

CNTSNK-CONI-EU-HSCO-90DGR-D25,0MM

Art.-no. 0694119025

EAN 4058794439151

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Countersink, EU HSCo, DIN 335C, 90° DIN 335C

Art.-no. 0694119025

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PU
x 1 pcs

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A multi-purpose tool with an uneven pitch (EU) for perfect cutting.

Extremely unequal pitch


  • Maximum surface quality: exact, round, chatter-free countersinks

  • Faster work due to higher cutting speeds

  • Greatly reduced tool wear

  • Maximum smoothness on all materials

  • Much less feed force required


Three-flat shank


No slipping; ideal for use with hand drills with three jaw drill chucks



For universal use


Ability to work on almost all materials due to special tip geometry and HSCo trimming material.



Sustainable product packaging made from 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® Bronze

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

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Material to be processed

Steel, Cast metal, Stainless steel, Titanium, Special alloy, Hard and tough material, Non-ferrous metal, Plastic

Quality

ZEBRA-Premium

Spot-facer diameter (d1)

25.0 mm

Shank diameter (d2)

10 mm

Tip diameter (d3)

3.8 mm

Length (l1)

67 mm

Number of cutting edges (Z)

3 PCS

Standards

DIN 335

Form

C

Cutting material

HSCo

Countersink angle

90 Degree

Surface

Uncoated

Shank style

3-face shank

Service life (points system)

3 of 4 points

Countersinking speed (point system)

3 of 4 points

Countersinking quality (point system)

4 of 4 points

Versatility (points system)

4 of 4 points

Countersinking behaviour (point system)

4 of 4 points

Material of sub-group

General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, White cast iron, Stainless steels, sulphurated, Stainless steels, austenitic, Stainless steels, martensitic, Titanium, Titanium alloys, Special alloys, Hardox, Spring steels, Aluminium alloys, Aluminium wrought alloys, Aluminium casting alloys (>10% silicon), Aluminium casting alloys (<10% silicon), Magnesium alloys, Copper, Brass, short-chipping, Brass, long-chipping, Bronze, short-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic, Plastics, aramide-fibre reinforced, Plastics, glass/carbon-fibre-reinforced

Countersink assignment to screw standards:
Countersink diameter For countersunk head screws For countersunk head screws
DIN EN ISO 10642
(previously DIN 7991) 		DIN EN ISO 2009, 2010, 7046, 7047
(Previously DIN 963.964.965.966)
4.3 mm M2 M2
6.3 mm M3 M3
8.3 mm M4 -
10.4 mm M5 M4, M5
12.4 mm M6 M6
16.5 mm M8 M8
20.5 mm - M10
25 mm M10, M12 M12
31 mm M16 -
37 mm M20 M16
Legend
vc = cutting speed (m/min)
f = feed (mm/r)
The recommended cutting values are reference values only and must be adapted to the respective conditions
For diameters of 16.5-37
Material designation Tensile strength vc f
Dia. 16.5 Dia. 20.5 Dia. 25 Dia. 31 Dia. 37
Steels
General structural steels ≤500 N/mm² 41 0,170 0,180 0,210 0,240 0,270
≤1,000 N/mm² 39 0,110 0,130 0,150 0,170 0,190
Unalloyed heat-treated steels ≤700 N/mm² 38 0,170 0,180 0,210 0,240 0,270
≤850 N/mm² 38 0,170 0,180 0,210 0,240 0,270
≤1,000 N/mm² 31 0,110 0,130 0,150 0,170 0,190
Alloyed hardened steels ≤1,000 N/mm² 31 0,170 0,180 0,210 0,240 0,270
≤1400 N/mm² 12 0,110 0,130 0,150 0,170 0,190
Nitriding steels ≤1,000 N/mm² 31 0,110 0,130 0,150 0,170 0,190
≤1400 N/mm² 12 0,070 0,080 0,090 0,120 0,150
Tool steels ≤850 N/mm² 31 0,110 0,130 0,150 0,170 0,190
≤1400 N/mm² 12 0,070 0,080 0,090 0,120 0,150
High-speed steels ≤1400 N/mm² 12 0,070 0,080 0,090 0,120 0,150
Cast metals
Cast iron ≤240 HB 19 0,170 0,180 0,210 0,240 0,270
≤350 HB 17 0,170 0,180 0,210 0,240 0,270
Spheroidal graphite and malleable iron ≤240 HB 17 0,170 0,180 0,210 0,240 0,270
≤350 HB 17 0,170 0,180 0,210 0,240 0,270
Die cast iron ≤350 HB 12 0,070 0,080 0,090 0,120 0,150
High-grade steels
Stainless steels, sulphurated ≤900 N/mm² 8 0,110 0,130 0,150 0,170 0,190
Stainless steels, austenitic ≤1100 N/mm² 8 0,070 0,080 0,090 0,120 0,150
Stainless steels, martensitic ≤1200 N/mm² 8 0,070 0,080 0,090 0,120 0,150
Titanium and titanium alloys ≤850 N/mm² 8 0,110 0,130 0,150 0,170 0,190
≤1400 N/mm² 8 0,070 0,080 0,090 0,120 0,150
Special alloys ≤1600 N/mm² 6 0,110 0,130 0,150 0,170 0,190
Hard materials
Hardox Hardox 400-500, XAR 320, XAR 400 4 0,090 0,110 0,140 0,160 -
Spring steels ≤350 HB 8 0,070 0,080 0,090 0,120 0,150
Non-ferrous metals
Aluminium and aluminium alloys ≤400 N/mm² 70 0,210 0,230 0,260 0,300 0,340
Forged aluminium alloys ≤650 N/mm² 50 0,210 0,230 0,260 0,300 0,340
Cast aluminium alloys ≤10 % Si ≤600 N/mm² 30 0,170 0,180 0,210 0,240 0,270
Cast aluminium alloys >10 % Si ≤600 N/mm² 20 0,170 0,180 0,210 0,240 0,270
Magnesium alloys ≤400 N/mm² 70 0,210 0,230 0,260 0,300 0,340
Copper, low alloy ≤500 N/mm² 30 0,210 0,230 0,260 0,300 0,340
Brass, short chipping ≤600 N/mm² 65 0,210 0,230 0,260 0,300 0,340
Brass, long chipping ≤600 N/mm² 40 0,210 0,230 0,260 0,300 0,340
Bronze, short chipping ≤600 N/mm² 65 0,210 0,230 0,260 0,300 0,340
≤850 N/mm² 65 0,210 0,230 0,260 0,300 0,340
Bronze, long chipping ≤850 N/mm² 40 0,210 0,230 0,260 0,300 0,340
≤1,000 N/mm² 40 0,210 0,230 0,260 0,300 0,340
Plastics
Plastics ≤150 N/mm² 30 0,210 0,230 0,260 0,300 0,340
Cutting values for HSS countersink drill bits, uncoated
For diameters of 4.3-12.4
Material designation Tensile strength vc f
Dia. 4.3 Dia. 6.3 Dia. 8.3 Dia. 10.4 Dia. 12.4
Steels
General structural steels ≤500 N/mm² 41 0,110 0,120 0,130 0,135 0,150
≤1,000 N/mm² 39 0,060 0,070 0,080 0,090 0,100
Unalloyed heat-treated steels ≤700 N/mm² 38 0,110 0,120 0,130 0,140 0,150
≤850 N/mm² 38 0,110 0,120 0,130 0,135 0,150
≤1,000 N/mm² 31 0,060 0,070 0,080 0,090 0,100
Alloyed hardened steels ≤1,000 N/mm² 31 0,110 0,120 0,130 0,140 0,150
≤1400 N/mm² 12 0,060 0,070 0,080 0,090 0,100
Nitriding steels ≤1,000 N/mm² 31 0,060 0,070 0,080 0,090 0,100
≤1400 N/mm² 12 0,030 0,040 0,050 0,060 0,060
Tool steels ≤850 N/mm² 31 0,060 0,070 0,080 0,090 0,100
≤1400 N/mm² 12 0,030 0,040 0,050 0,060 0,060
High-speed steels ≤1400 N/mm² 12 0,030 0,040 0,050 0,060 0,060
Cast metals
Cast iron ≤240 HB 19 0,110 0,120 0,130 0,140 0,150
≤350 HB 17 0,110 0,120 0,130 0,140 0,150
Spheroidal graphite and malleable iron ≤240 HB 17 0,110 0,120 0,130 0,140 0,150
≤350 HB 17 0,110 0,120 0,130 0,140 0,150
Die cast iron ≤350 HB 12 0,030 0,040 0,050 0,060 0,060
High-grade steels
Stainless steels, sulphurated ≤900 N/mm² 8 0,060 0,068 0,081 0,090 0,100
Stainless steels, austenitic ≤1100 N/mm² 8 0,030 0,040 0,050 0,060 0,060
Stainless steels, martensitic ≤1200 N/mm² 8 0,030 0,040 0,050 0,060 0,060
Titanium and titanium alloys ≤850 N/mm² 8 0,060 0,070 0,080 0,090 0,100
≤1400 N/mm² 8 0,030 0,040 0,050 0,060 0,060
Special alloys ≤1600 N/mm² 6 0,060 0,070 0,080 0,090 0,100
Hard materials
Hardox Hardox 400-500, XAR 320, XAR 400 4 - 0,070 0,080 0,080 0,090
Spring steels ≤350 HB 8 0,030 0,040 0,050 0,060 0,060
Non-ferrous metals
Aluminium and aluminium alloys ≤400 N/mm² 70 0,140 0,150 0,162 0,170 0,190
Forged aluminium alloys ≤650 N/mm² 50 0,140 0,150 0,162 0,170 0,190
Cast aluminium alloys ≤10 % Si ≤600 N/mm² 30 0,110 0,120 0,130 0,140 0,150
Cast aluminium alloys >10 % Si ≤600 N/mm² 20 0,110 0,120 0,130 0,140 0,150
Magnesium alloys ≤400 N/mm² 70 0,140 0,150 0,160 0,170 0,190
Copper, low alloy ≤500 N/mm² 30 0,140 0,150 0,160 0,170 0,190
Brass, short chipping ≤600 N/mm² 65 0,140 0,150 0,160 0,170 0,190
Brass, long chipping ≤600 N/mm² 40 0,140 0,150 0,160 0,170 0,190
Bronze, short chipping ≤600 N/mm² 65 0,140 0,150 0,160 0,170 0,190
≤850 N/mm² 65 0,140 0,150 0,160 0,170 0,190
Bronze, long chipping ≤850 N/mm² 40 0,140 0,150 0,160 0,170 0,190
≤1,000 N/mm² 40 0,140 0,150 0,160 0,170 0,190
Plastics
Plastics ≤150 N/mm² 30 0,140 0,150 0,160 0,170 0,190
Additive article:
 
Product
Description
Quantity
PU
Price
/PU
CUT+COOL drilling and cutting oil
CUT+COOL drilling and cutting oil

CUTOIL-DRILL-(CUT-COOL)-400ML

Multi cutting oil for light to medium machining work
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