Twist drill SC, WN 20, type N, internal cooling, TiAlN-UV - DRL-TWST-WN20XD-UV-IC-SC-TNS-HA-D7,0MM

Twist drill SC, WN 20, type N, internal cooling, TiAlN-UV

Name: Twist drill SC, WN 20, type N, internal cooling, TiAlN-UV
Brand: Würth
SKU: 5443002097

Twist drill SD WN-XL 20xD type N IC TiAlN-S Uni
DRL-TWST-WN20XD-UV-IC-SC-TNS-HA-D7,0MM

Art.-no. 5443002097

EAN 4055375911327

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Twist drill SC, WN 20, type N, internal cooling, TiAlN-UV

Art.-no. 5443002097

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Solid carbide high-performance drill bit with internal cooling channels for universal applications and considerable drilling depths of up to 20xd. 4 guide chamfers guarantee excellent alignment accuracy and stabilisation of the drill bit even at very deep drill depths, as well as exact and precise holes. Special grinding for optimum chip breaking, high centring accuracy and low cutting forces.

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Product code	6787
Material to be processed	Steel, Cast metal, Stainless steel, Copper, Brass, Aluminium
Standards	CS
Design	Extra long
Surface	TiAlN-S
Max. drilling depth (D)	20xD
Cutting material	SC
Number of guiding chamfers	4 PCS
Angle of the tip	135 Degree
Number of cutting edges	2 PCS
Coolant supply	Internal
Diameter (d1)	7.0 mm
Shank style	Cylindrical DIN 6535-HA
Length (l1)	210 mm
Chip flute length (l2)	160 mm
Tolerance of cutting edge diameter	h7
Shank diameter (d2)	8 mm
Tolerance of shank diameter	h6
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

Cutting values for solid carbide high-performance drill Speeddrill, 20xd1 with internal cooling
For dia. 2 to dia. 5.9
Material designation	Tensile strength	Cooling	v_c	f
				Dia. 2 to dia. 2.9	Dia. 3 to dia. 5.9
General structural steels	< 500 N/mm²	E	105	0,100	0,140
General structural steels	500-850 N/mm²	E	95	0,075	0,100
Carbon steels	< 850 N/mm²	E	105	0,010	0,140
Carbon steels	850-1000 N/mm²	E	95	0,075	0,100
Unalloyed heat-treated steels	< 700 N/mm²	E	90	0,100	0,140
	700-850 N/mm²	E	90	0,100	0,140
	850-1000 N/mm²	E	90	0,075	0,100
Alloyed heat-treated steels	850-1000 N/mm²	E	90	0,075	0,100
Alloyed heat-treated steels	1000-1200 N/mm²	E	70	0,075	0,100
Unalloyed case-hardening steels	< 750 N/mm²	E	100	0,100	0,140
Alloyed case-hardening steels	< 1000 N/mm²	E	95	0,100	0,140
Alloyed case-hardening steels	1000-1200 N/mm²	E	90	0,075	0,100
Nitriding steels	< 1000 N/mm²	E	90	0,075	0,100
Nitriding steels	1000-1200 N/mm²	E	90	0,075	0,100
Tool steels	< 850 N/mm²	E	70	0,075	0,100
Tool steels	850-1100 N/mm²	E	70	0,075	0,100
Stainless steels, sulphurated	< 700 N/mm²	E	70	0,050	0,080
Stainless steels, austenitic	< 700 N/mm²	E	50	0,050	0,080
Stainless steels, austenitic	< 850 N/mm²	E	50	0,050	0,080
Stainless steels, martensitic	< 1100 N/mm²	E	45	0,050	0,080
Cast iron	< 180 HB	D/E	100	0,150	0,230
Cast iron	> 180 HB	D/E	95	0,150	0,230
Nodular graphite, malleable iron	> 180 HB	E	100	0,125	0,200
Nodular graphite, malleable iron	> 260 HB	E	95	0,125	0,200

Legend
D = pneumatic
E = emulsion
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 solid carbide high-performance drill Speeddrill, 20xd1 with internal cooling
For dia. 6 - dia. 12
Material designation	Tensile strength	Cooling	v_c	f
				Dia. 6 to dia. 8.9	Dia. 9 to dia. 12
General structural steels	< 500 N/mm²	E	105	0,200	0,275
General structural steels	500-850 N/mm²	E	95	0,150	0,200
Carbon steels	< 850 N/mm²	E	105	0,200	0,275
Carbon steels	850-1000 N/mm²	E	95	0,150	0,200
Unalloyed heat-treated steels	< 700 N/mm²	E	90	0,200	0,275
	700-850 N/mm²	E	90	0,200	0,275
	850-1000 N/mm²	E	90	0,150	0,200
Alloyed heat-treated steels	850-1000 N/mm²	E	90	0,150	0,200
Alloyed heat-treated steels	1000-1200 N/mm²	E	70	0,150	0,200
Unalloyed case-hardening steels	< 750 N/mm²	E	100	0,200	0,275
Alloyed case-hardening steels	< 1000 N/mm²	E	95	0,200	0,275
Alloyed case-hardening steels	1000-1200 N/mm²	E	90	0,150	0,200
Nitriding steels	< 1000 N/mm²	E	90	0,150	0,200
Nitriding steels	1000-1200 N/mm²	E	90	0,150	0,200
Tool steels	< 850 N/mm²	E	70	0,150	0,200
Tool steels	850-1100 N/mm²	E	70	0,150	0,200
Stainless steels, sulphurated	< 700 N/mm²	E	70	0,120	0,150
Stainless steels, austenitic	< 700 N/mm²	E	50	0,120	0,150
Stainless steels, austenitic	< 850 N/mm²	E	50	0,120	0,150
Stainless steels, martensitic	< 1100 N/mm²	E	45	0,120	0,150
Cast iron	< 180 HB	D/E	100	0,335	0,425
Cast iron	> 180 HB	D/E	95	0,335	0,425
Nodular graphite, malleable iron	> 180 HB	E	100	0,250	0,350
Nodular graphite, malleable iron	> 260 HB	E	95	0,250	0,350