SC 90° countersink DIN 335C - CNTSNK-CONI-90DGR-DIN335C-SC-TN-D31,0MM

SC 90° countersink DIN 335C

Name: SC 90° countersink DIN 335C
Brand: Würth
SKU: 5443100031

Solid carbide conical countersink DIN 335 FC TIALN
CNTSNK-CONI-90DGR-DIN335C-SC-TN-D31,0MM

Art.-no. 5443100031

EAN 4055375892756

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SC 90° countersink DIN 335C

Art.-no. 5443100031

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For chatter-free countersinking and deburring of steels, high-strength steels, grey cast iron, VA materials and silicon-containing aluminium alloys.

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Würth Catalogue

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Product code	6407
Material to be processed	Steel, Cast metal, Stainless steel, Titanium, Hard and tough material
Spot-facer diameter (d1)	31 mm
Shank diameter (d2)	12 mm
Tip diameter (d3)	4.2 mm
Length (l1)	71 mm
Number of cutting edges (Z)	3 PCS
Standards	DIN 335
Form	C
Cutting material	SC
Countersink angle	90 Degree
Surface	TiAlN
Shank style	Cylindrical
Suitable for cordless drills (points system)	1 of 4 points
Suitable for drill (points system)	1 of 4 points
Suitable for upright drilling machine (points system)	3 of 4 points
Suitable for milling-drilling centre (points system)	4 of 4 points
Service life (points system)	3 of 4 points
Countersinking speed (point system)	3 of 4 points
Countersinking quality (point system)	2 of 4 points
Versatility (points system)	3 of 4 points
Countersinking behaviour (point system)	2 of 4 points
Tolerance of cutting edge diameter	z9
Tolerance of shank diameter	h9
Material of sub-group	General structural steels, Non-alloyed tempering steels, Plastics, aramide-fibre reinforced, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, White cast iron, Stainless steels, austenitic, Stainless steels, sulphurated, Stainless steels, martensitic, Titanium, Titanium alloys, Special alloys, Hardox, Spring steels, Aluminium casting alloys (>10% silicon), Aluminium casting alloys (<10% silicon), Brass, short-chipping, Bronze, short-chipping

Cutting values for countersinks, coated
For dia. 5.3–14.4
Material designation	Tensile strength	v_c		f
		From	To	Dia. 5.3	Dia. 6.3/8.3	Dia. 10.4/12.4/14.4
General structural steels	< 500 N/mm²	66	84	0,070	0,090	0,120
General structural steels	500–850 N/mm²	66	78	0,060	0,080	0,100
Machining steels	< 850 N/mm²	66	78	0,060	0,080	0,100
Machining steels	850–1000 N/mm²	48	66	0,040	0,060	0,080
Unalloyed heat-treated steels	< 700 N/mm²	66	78	0,060	0,080	0,100
	700–850 N/mm²	66	78	0,060	0,080	0,100
	850–1000 N/mm²	48	66	0,040	0,060	0,080
Alloyed heat-treated steels	850–1000 N/mm²	48	66	0,040	0,060	0,080
Alloyed heat-treated steels	1000–1200 N/mm²	16	26	0,030	0,040	0,050
Non-alloyed case-hardening steels	< 750 N/mm²	66	78	0,060	0,080	0,100
Alloyed case-hardening steels	< 1000 N/mm²	48	66	0,040	0,060	0,080
Alloyed case-hardening steels	1000–1200 N/mm²	16	26	0,030	0,040	0,050
Nitriding steels	< 1000 N/mm²	48	66	0,040	0,060	0,080
Nitriding steels	1000–1200 N/mm²	16	26	0,030	0,040	0,050
Tool steels	< 850 N/mm²	48	66	0,040	0,060	0,080
	850–1100 N/mm²	16	26	0,030	0,040	0,050
	1100–1400 N/mm²	6	14	0,090	0,030	0,040
High-speed steels	850–1200 N/mm²	16	26	0,030	0,040	0,050
Hardened steels	48–55 HRC	6	14	0,090	0,030	0,040
Hardened steels	55–60 HRC	6	14	0,090	0,030	0,040
Wear-resistant constructional steel	1350 N/mm²	6	14	0,090	0,030	0,040
Wear-resistant constructional steel	1800 N/mm²	6	14	0,090	0,030	0,040
Spring steels	< 1200 N/mm²	16	26	0,030	0,040	0,050
Stainless steels, sulphurated	< 700 N/mm²	12	26	0,040	0,050	0,060
Stainless steels, austenitic	< 700 N/mm²	12	26	0,040	0,050	0,060
Stainless steels, austenitic	< 850 N/mm²	12	26	0,040	0,050	0,060
Stainless steels, martensitic	< 1100 N/mm²	12	26	0,040	0,050	0,060
Special alloys	< 1200 N/mm²	6	14	0,090	0,030	0,040
Cast iron	< 180 HB	42	66	0,080	0,100	0,120
Cast iron	> 180 HB	24	42	0,060	0,070	0,080
Spheroidal graphite, malleable iron	> 180 HB	24	42	0,060	0,070	0,080
Spheroidal graphite, malleable iron	> 260 HB	24	42	0,060	0,070	0,080
Titanium, titanium alloys	< 850 N/mm²	12	26	0,040	0,050	0,060
Aluminium, aluminium alloys	< 530 N/mm²	132	240	0,100	0,120	0,140
Aluminium, cast aluminium alloys < 10% Si	< 600 N/mm²	66	108	0,080	0,100	0,120
Aluminium, cast aluminium alloys > 10% Si	< 600 N/mm²	30	84	0,080	0,100	0,120
Magnesium, magnesium alloys	< 280 N/mm²	132	240	0,100	0,120	0,140
Copper, low-alloyed	< 350 N/mm²	66	108	0,080	0,100	0,120
Brass, short-chipping	< 600 N/mm²	132	210	0,100	0,120	0,140
Brass, long-chipping	< 600 N/mm²	84	132	0,100	0,120	0,140
Bronze, short-chipping	< 600 N/mm²	132	210	0,100	0,120	0,140
Bronze, short-chipping	650–850 N/mm²	132	210	0,100	0,120	0,140
Bronze, long-chipping	< 850 N/mm²	84	132	0,100	0,120	0,140
Bronze, long-chipping	850–1200 N/mm²	84	132	0,100	0,120	0,140
Graphite		42	66	0,080	0,100	0,120

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.

Cutting values for countersinks, coated
For dia. 16.5–31
Material designation	Tensile strength	v_c		f
		From	To	Dia. 16.5/19.5	Dia. 20.5	Dia. 25/31
General structural steels	< 500 N/mm²	66	84	0,140	0,160	0,200
General structural steels	500–850 N/mm²	66	78	0,120	0,140	0,180
Machining steels	< 850 N/mm²	66	78	0,120	0,140	0,180
Machining steels	850–1000 N/mm²	48	66	0,100	0,120	0,140
Unalloyed heat-treated steels	< 700 N/mm²	66	78	0,120	0,140	0,180
	700–850 N/mm²	66	78	0,120	0,140	0,180
	850–1000 N/mm²	48	66	0,100	0,120	0,140
Alloyed heat-treated steels	850–1000 N/mm²	48	66	0,100	0,120	0,140
Alloyed heat-treated steels	1000–1200 N/mm²	16	26	0,090	0,080	0,100
Non-alloyed case-hardening steels	< 750 N/mm²	66	78	0,120	0,140	0,180
Alloyed case-hardening steels	< 1000 N/mm²	48	66	0,100	0,120	0,140
Alloyed case-hardening steels	1000–1200 N/mm²	16	26	0,090	0,080	0,100
Nitriding steels	< 1000 N/mm²	48	66	0,100	0,120	0,140
Nitriding steels	1000–1200 N/mm²	16	26	0,090	0,080	0,100
Tool steels	< 850 N/mm²	48	66	0,100	0,120	0,140
	850–1100 N/mm²	16	26	0,090	0,080	0,100
	1100–1400 N/mm²	6	14	0,050	0,060	0,080
High-speed steels	850–1200 N/mm²	16	26	0,090	0,080	0,100
Hardened steels	48–55 HRC	6	14	0,050	0,060	0,080
Hardened steels	55–60 HRC	6	14	0,050	0,060	0,080
Wear-resistant constructional steel	1350 N/mm²	6	14	0,050	0,060	0,080
Wear-resistant constructional steel	1800 N/mm²	6	14	0,050	0,060	0,080
Spring steels	< 1200 N/mm²	16	26	0,090	0,080	0,100
Stainless steels, sulphurated	< 700 N/mm²	12	26	0,070	0,080	0,090
Stainless steels, austenitic	< 700 N/mm²	12	26	0,070	0,080	0,090
Stainless steels, austenitic	< 850 N/mm²	12	26	0,070	0,080	0,090
Stainless steels, martensitic	< 1100 N/mm²	12	26	0,070	0,080	0,090
Special alloys	< 1200 N/mm²	6	14	0,050	0,060	0,080
Cast iron	< 180 HB	42	66	0,160	0,200	0,250
Cast iron	> 180 HB	24	42	0,120	0,160	0,200
Spheroidal graphite, malleable iron	> 180 HB	24	42	0,120	0,160	0,200
Spheroidal graphite, malleable iron	> 260 HB	24	42	0,120	0,160	0,200
Titanium, titanium alloys	< 850 N/mm²	12	26	0,070	0,080	0,090
Aluminium, aluminium alloys	< 530 N/mm²	132	240	0,180	0,220	0,260
Aluminium, cast aluminium alloys < 10% Si	< 600 N/mm²	66	108	0,140	0,180	0,220
Aluminium, cast aluminium alloys > 10% Si	< 600 N/mm²	30	84	0,140	0,180	0,220
Magnesium, magnesium alloys	< 280 N/mm²	132	240	0,180	0,220	0,260
Copper, low-alloyed	< 350 N/mm²	66	108	0,140	0,180	0,220
Brass, short-chipping	< 600 N/mm²	132	210	0,180	0,200	0,240
Brass, long-chipping	< 600 N/mm²	84	132	0,180	0,200	0,240
Bronze, short-chipping	< 600 N/mm²	132	210	0,180	0,200	0,240
Bronze, short-chipping	650–850 N/mm²	132	210	0,180	0,200	0,240
Bronze, long-chipping	< 850 N/mm²	84	132	0,180	0,200	0,240
Bronze, long-chipping	850–1200 N/mm²	84	132	0,180	0,200	0,240
Graphite		42	66	0,160	0,200	0,250

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