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

Name: Countersink, EU HSCo, DIN 335C, 90° DIN 335C
Brand: Würth
SKU: 0694119025

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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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


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
v_c = 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	v_c	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
General structural steels	≤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
Alloyed hardened steels	≤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
Nitriding steels	≤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
Tool steels	≤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
Cast iron	≤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
Spheroidal graphite and malleable iron	≤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
Titanium and titanium alloys	≤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
Bronze, short chipping	≤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
Bronze, long chipping	≤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	v_c	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
General structural steels	≤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
Alloyed hardened steels	≤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
Nitriding steels	≤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
Tool steels	≤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
Cast iron	≤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
Spheroidal graphite and malleable iron	≤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
Titanium and titanium alloys	≤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
Bronze, short chipping	≤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
Bronze, long chipping	≤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

Price
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CUT+COOL drilling and cutting oil

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

Art.-no. 0893050004

Multi cutting oil for light to medium machining work

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