Twist drill SC, WN 25, type N, internal cooling, TiAlN-UV - DRL-TWST-WN25XD-UV-IC-SC-TNS-HA-D8,0MM

Twist drill SC, WN 25, type N, internal cooling, TiAlN-UV

Name: Twist drill SC, WN 25, type N, internal cooling, TiAlN-UV
Brand: Würth
SKU: 5443002135

Twist drill SD WN-XL 25xD type N IC TiAlN-S Uni
DRL-TWST-WN25XD-UV-IC-SC-TNS-HA-D8,0MM

Art.-no. 5443002135

EAN 4055375911624

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Twist drill SC, WN 25, type N, internal cooling, TiAlN-UV

Art.-no. 5443002135

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Solid carbide high-performance drill bit with internal cooling channels for universal applications and considerable drilling depths of up to 25xd. 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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Würth Catalogue

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Product code	6797
Material to be processed	Steel, Cast metal, Stainless steel, Copper, Brass, Aluminium
Standards	CS
Design	Extra long
Surface	TiAlN-S
Max. drilling depth (D)	25xD
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)	8.0 mm
Shank style	Cylindrical DIN 6535-HA
Length (l1)	260 mm
Chip flute length (l2)	220 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, 25xd1 with internal cooling
For dia. 3 to dia. 12
Material designation	Tensile strength	Cooling	v_c	f
				Dia. 3 to dia. 5.9	Dia. 6 to dia. 8.9	Dia. 9 to dia. 12
General structural steels	< 500 N/mm²	E	105	0,100	0,140	0,200
General structural steels	500-850 N/mm²	E	95	0,075	0,100	0,150
Carbon steels	< 850 N/mm²	E	105	0,010	0,140	0,200
Carbon steels	850-1000 N/mm²	E	95	0,075	0,100	0,150
Unalloyed heat-treated steels	< 700 N/mm²	E	90	0,100	0,140	0,200
	700-850 N/mm²	E	90	0,100	0,140	0,200
	850-1000 N/mm²	E	90	0,075	0,100	0,150
Alloyed heat-treated steels	850-1000 N/mm²	E	90	0,075	0,100	0,150
Alloyed heat-treated steels	1000-1200 N/mm²	E	70	0,075	0,100	0,150
Unalloyed case-hardening steels	< 750 N/mm²	E	100	0,100	0,140	0,200
Alloyed case-hardening steels	< 1000 N/mm²	E	95	0,100	0,140	0,200
Alloyed case-hardening steels	1000-1200 N/mm²	E	90	0,075	0,100	0,150
Nitriding steels	< 1000 N/mm²	E	90	0,075	0,100	0,150
Nitriding steels	1000-1200 N/mm²	E	90	0,075	0,100	0,150
Tool steels	< 850 N/mm²	E	70	0,075	0,100	0,150
Tool steels	850-1100 N/mm²	E	70	0,075	0,100	0,150
Stainless steels, sulphurated	< 700 N/mm²	E	70	0,050	0,080	0,120
Stainless steels, austenitic	< 700 N/mm²	E	50	0,050	0,080	0,120
Stainless steels, austenitic	< 850 N/mm²	E	50	0,050	0,080	0,120
Stainless steels, martensitic	< 1100 N/mm²	E	45	0,050	0,080	0,120
Cast iron	< 180 HB	D/E	100	0,150	0,230	0,335
Cast iron	> 180 HB	D/E	95	0,150	0,230	0,335
Nodular graphite, malleable iron	> 180 HB	E	100	0,125	0,200	0,250
Nodular graphite, malleable iron	> 260 HB	E	95	0,125	0,200	0,250

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.