HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D8,3MM

HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D8,3MM - 1

HSCo 90° green-ring countersink DIN 335C

Name: HSCo 90° green-ring countersink DIN 335C
Brand: Würth
SKU: 069401908

Conical countersink HSCo, green ring
CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D8,3MM
ZEBRA

Art.-no. 069401908

EAN 4011231603362

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HSCo 90° green-ring countersink DIN 335C

Art.-no. 069401908

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Particularly suitable for processing stainless steel, alloyed or high-alloy and rust- and acid-resistant steels.

Burr- and chatter-free countersinking and deburring

Precision tapered countersink with three cutting edges, precision-ground

Optimised flute geometry

Excellent chip formation and removal

Product packaging made of 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
Quality	ZEBRA-Premium
Spot-facer diameter (d1)	8.3 mm
Shank diameter (d2)	6 mm
Tip diameter (d3)	2.0 mm
Length (l1)	50 mm
Number of cutting edges (Z)	3 PCS
Standards	DIN 335
Form	C
Cutting material	HSCo
Countersink angle	90 Degree
Surface	Uncoated
Shank style	Cylindrical
Service life (points system)	2 of 4 points
Countersinking speed (point system)	2 of 4 points
Countersinking quality (point system)	2 of 4 points
Versatility (points system)	2 of 4 points
Countersinking behaviour (point system)	2 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, Spring steels

Legend
v_c = cutting speed [m/min]
f = feed (mm/r)
The suggested cutting values are reference values and must be adapted to the respective conditions.

Conical countersink nominal diameter d1	For countersunk head screws	For countersunk head screws
	DIN EN ISO 10642 (formerly DIN 7991)	DIN EN ISO 2009, 2010, 7046, 7047 (formerly DIN 963,964,965,966)
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
25.0 mm	M10, M12	M12
31.0 mm	M16	-

For dia. 16.5-31
Material designation	Tensile strength	v_c	f
			Dia. 16.5	Dia. 20.5	Dia. 25	Dia. 31
Steels
General structural steels	≤ 500 N/mm²	35	0,170	0,180	0,210	0,240
General structural steels	≤ 1,000 N/mm²	33	0,110	0,130	0,150	0,170
Unalloyed quenched and tempered steels	≤ 700 N/mm²	35	0,170	0,180	0,210	0,240
	≤ 850 N/mm²	33	0,170	0,180	0,210	0,240
	≤ 1,000 N/mm²	22	0,110	0,130	0,150	0,170
Alloyed quenched and tempered steels	≤ 1,000 N/mm²	17	0,170	0,180	0,210	0,240
Alloyed quenched and tempered steels	≤ 1,400 N/mm²	13	0,110	0,130	0,150	0,170
Nitriding steels	≤ 1,000 N/mm²	17	0,110	0,130	0,150	0,170
Nitriding steels	≤ 1,400 N/mm²	13	0,070	0,080	0,090	0,120
Tool steels	≤ 850 N/mm²	19	0,110	0,130	0,150	0,170
Tool steels	≤ 1,400 N/mm²	17	0,070	0,080	0,090	0,120
High-speed steels	≤ 1,400 N/mm²	17	0,070	0,080	0,150	0,120
Stainless steels
Sulphurated stainless steels	≤ 900 N/mm²	18	0,110	0,130	0,150	0,170
Austenitic stainless steels	≤ 1,100 N/mm²	13	0,070	0,080	0,090	0,120
Martensitic stainless steels	≤ 1,200 N/mm²	15	0,070	0,080	0,090	0,120
Titanium and titanium alloys	≤ 850 N/mm²	17	0,110	0,130	0,150	0,170
Titanium and titanium alloys	≤ 1,400 N/mm²	11	0,070	0,080	0,090	0,120
Special alloys	≤ 1,600 N/mm²	9	0,110	0,130	0,150	0,170
Cast metals
Cast iron	≤ 240 HB	28	0,170	0,180	0,210	0,240
Cast iron	≤ 350 HB	18	0,170	0,180	0,210	0,240
Spheroidal graphite and malleable iron	≤ 240 HB	24	0,170	0,180	0,210	0,240
Spheroidal graphite and malleable iron	≤ 350 HB	22	0,170	0,180	0,210	0,240
Chilled cast iron	≤ 350 HB	9	0,070	0,080	0,090	0,120
Hard materials
Spring steels	≤ 350 HB	11	0,070	0,080	0,090	0,120

For dia. 6.3-12.4
Material designation	Tensile strength	v_c	f
			Dia. 6.3	Dia. 8.3	Dia. 10.4	Dia. 12.4
Steels
General structural steels	≤ 500 N/mm²	35	0,120	0,130	0,140	0,150
General structural steels	≤ 1,000 N/mm²	33	0,070	0,080	0,090	0,100
Unalloyed quenched and tempered steels	≤ 700 N/mm²	35	0,120	0,130	0,140	0,150
	≤ 850 N/mm²	33	0,120	0,130	0,140	0,150
	≤ 1,000 N/mm²	22	0,070	0,080	0,090	0,100
Alloyed quenched and tempered steels	≤ 1,000 N/mm²	17	0,120	0,130	0,140	0,150
Alloyed quenched and tempered steels	≤ 1,400 N/mm²	13	0,070	0,080	0,090	0,100
Nitriding steels	≤ 1,000 N/mm²	17	0,070	0,080	0,090	0,100
Nitriding steels	≤ 1,400 N/mm²	13	0,040	0,050	0,060	0,060
Tool steels	≤ 850 N/mm²	19	0,070	0,080	0,090	0,100
Tool steels	≤ 1,400 N/mm²	17	0,040	0,050	0,060	0,060
High-speed steels	≤ 1,400 N/mm²	17	0,040	0,050	0,060	0,060
Stainless steels
Sulphurated stainless steels	≤ 900 N/mm²	18	0,068	0,081	0,090	0,100
Austenitic stainless steels	≤ 1,100 N/mm²	13	0,040	0,050	0,060	0,060
Martensitic stainless steels	≤ 1,200 N/mm²	15	0,040	0,050	0,060	0,060
Titanium and titanium alloys	≤ 850 N/mm²	17	0,070	0,080	0,090	0,100
Titanium and titanium alloys	≤ 1,400 N/mm²	11	0,040	0,050	0,060	0,060
Special alloys	≤ 1,600 N/mm²	9	0,070	0,080	0,090	0,100
Cast metals
Cast iron	≤ 240 HB	28	0,120	0,130	0,140	0,150
Cast iron	≤ 350 HB	18	0,120	0,130	0,140	0,150
Spheroidal graphite and malleable iron	≤ 240 HB	24	0,120	0,130	0,140	0,150
Spheroidal graphite and malleable iron	≤ 350 HB	22	0,120	0,130	0,140	0,150
Chilled cast iron	≤ 350 HB	9	0,040	0,050	0,060	0,060
Hard materials
Spring steels	≤ 350 HB	11	0,040	0,050	0,060	0,060

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