NC centre drill solid carbide 90°

Name: NC centre drill solid carbide 90°
Brand: Würth
SKU: 5443002763

Centre drill NC 90° solid carbide WN TiAlN
DRL-SPRL-MET-NC90-SC-TN-D6,0MM

Art.-no. 5443002763

EAN 4055375891506

All versions

Specification

Special drill bit for especially precise and rapid spot drilling on NC machines, jig boring machines etc. For centring and chamfering threaded drill holes.

Technical information


Product code	6227
Standards	CS
Surface	TiAlN
Cutting material	SC
Angle of the tip	90 Degree
Diameter (d1)	6 mm
Shank style	Cylindrical
Length (l1)	66 mm
Chip flute length (l2)	16 mm
Shank diameter (d2)	6 mm
Tolerance of cutting edge diameter	h6
Tolerance of shank diameter	h6

Cutting values for solid carbide drill bits, coated
For dia. 4-20
Material designation	Tensile strength	Cooling	v_c		f
			from	to	Dia. 4-5.9	Dia. 6-8.9	Dia. 9-11.9	Dia. 12-15.9	Dia. 16-20
General structural steels	< 500 N/mm²	E	80	100	0,100	0,140	0,170	0,230	0,288
General structural steels	500-850 N/mm²	E	80	100	0,100	0,140	0,170	0,230	0,288
Carbon steels	< 850 N/mm²	E	80	100	0,100	0,140	0,170	0,230	0,288
Carbon steels	850-1000 N/mm²	E	70	85	0,100	0,140	0,170	0,230	0,288
Unalloyed heat-treated steels	< 700 N/mm²	E	80	100	0,100	0,140	0,170	0,230	0,288
	700-850 N/mm²	E	80	100	0,100	0,140	0,170	0,230	0,288
	850-1000 N/mm²	E	70	85	0,090	0,120	0,150	0,200	0,250
Alloyed heat-treated steels	850-1000 N/mm²	E	70	85	0,090	0,120	0,150	0,200	0,250
Alloyed heat-treated steels	1000-1200 N/mm²	E	65	80	0,090	0,120	0,150	0,200	0,250
Unalloyed case-hardening steels	< 750 N/mm²	E	80	100	0,090	0,120	0,150	0,200	0,250
Alloyed case-hardening steels	< 1000 N/mm²	E	70	85	0,090	0,120	0,150	0,200	0,250
Alloyed case-hardening steels	1000-1200 N/mm²	E	65	80	0,090	0,120	0,150	0,200	0,250
Nitriding steels	< 1000 N/mm²	E	70	85	0,080	0,110	0,140	0,180	0,225
Nitriding steels	1000-1200 N/mm²	E	65	80	0,080	0,110	0,140	0,180	0,225
Tool steels	< 850 N/mm²	E	70	85	0,080	0,110	0,140	0,180	0,225
	850-1100 N/mm²	E	65	80	0,080	0,110	0,140	0,180	0,225
	1100-1400 N/mm²	E	40	50	0,080	0,110	0,140	0,180	0,225
High-speed steels	850-1200 N/mm²	E	40	50	0,080	0,110	0,140	0,180	0,225
Wear-resistant constructional steel	1350 N/mm²	E	25	45	0,080	0,110	0,140	0,180	0,225
Spring steels	< 1200 N/mm²	E	25	45	0,080	0,110	0,140	0,180	0,225
Stainless steels, sulphurated	< 700 N/mm²	E	40	50	0,090	0,120	0,150	0,200	0,250
Stainless steels, austenitic	< 700 N/mm²	E	40	50	0,090	0,120	0,150	0,200	0,250
Stainless steels, austenitic	< 850 N/mm²	E	32.5	45.5	0,090	0,120	0,150	0,200	0,250
Stainless steels, martensitic	< 1100 N/mm²	E	32.5	45.5	0,090	0,120	0,150	0,200	0,250
Special alloys	< 1200 N/mm²	E	20	35	0,080	0,110	0,140	0,180	0,225
Cast iron	< 180 HB	T/E	90	130	0,090	0,130	0,160	0,210	0,263
Cast iron	> 180 HB	T/E	90	130	0,090	0,130	0,160	0,210	0,263
Nodular graphite, malleable iron	> 180 HB	E	84.5	100	0,090	0,120	0,150	0,200	0,250
Nodular graphite, malleable iron	> 260 HB	E	84.5	100	0,090	0,120	0,150	0,200	0,250
Aluminium, aluminium alloys	< 530 N/mm²	E	200	300	0,100	0,140	0,170	0,230	0,288
Aluminium, cast aluminium alloys < 10 % Si	< 600 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Aluminium, cast aluminium alloys > 10 % Si	< 600 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Magnesium, magnesium alloys	< 280 N/mm²	E	200	300	0,100	0,140	0,170	0,230	0,288
Copper, low-alloy	< 350 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Brass, short-chipping	< 600 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Brass, long-chipping	< 600 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Bronze, short-chipping	< 600 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Bronze, short-chipping	650-850 N/mm²	E	130	230	0,100	0,140	0,170	0,230	0,288
Bronze, long-chipping	< 850 N/mm²	E	120	180	0,090	0,130	0,160	0,210	0,263
Bronze, long-chipping	850-1200 N/mm²	E	120	180	0,090	0,130	0,160	0,210	0,263
Graphite		T	90	130	0,090	0,130	0,160	0,210	0,263

Legend
E = emulsion
T = dry
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.