Speeddrill+ Universal solid carbide twist drill bit DIN 6537L, extra-long 8xD, 4 drill heels, with internal cooling - DRL-SDPLUS-8XD-UV-IC-SC-HB-D8,5MM

Speeddrill+ Universal solid carbide twist drill bit DIN 6537L, extra-long 8xD, 4 drill heels, with internal cooling

Name: Speeddrill+ Universal solid carbide twist drill bit DIN 6537L, extra-long 8xD, 4 drill heels, with internal cooling
Brand: Würth
SKU: 5443934055

Twist drill bit SD+ DIN6537 8xD Type N IC ALTINDUR pl
DRL-SDPLUS-8XD-UV-IC-SC-HB-D8,5MM

Art.-no. 5443934055

EAN 4065746523998

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Speeddrill+ Universal solid carbide twist drill bit DIN 6537L, extra-long 8xD, 4 drill heels, with internal cooling

Art.-no. 5443934055

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Solid carbide high-performance drill bit with internal cooling channels for universal applications. High degree of stability and universal application with straight main cutting edge. Special thinning for optimum chip breaking, high centring accuracy and low cutting forces.

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Würth Catalogue

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Certificates/ Documents


Product code	6748
Material to be processed	Steel Cast metal Stainless steel Copper Brass Aluminium
Standards	CS
Design	Extra long
Surface	ALTINDUR
Max. drilling depth (D)	8xD
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)	8.5 mm
Shank style	Cylindrical DIN 6535-HB
Length (l1)	142 mm
Chip flute length (l2)	95 mm
Tolerance of cutting edge diameter	h7
Shank diameter (d2)	10 mm
Tolerance of shank diameter	h5
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 Stainless steels < 850 N/mm² Stainless steels > 850 N/mm² Copper Brass Aluminium

Cutting values
For dia. 1 to dia. 4.9
Material designation	Tensile strength	Refrigeration	v_c	f
Material designation	Tensile strength	Refrigeration	v_c	Dia. 1 to dia. 1.9	Dia. 2 to dia. 2.9	Dia. 3 to dia. 3.9	Dia. 4 to dia. 4.9
Steels
General structural steels	< 500 N/mm²	E	132	0,032	0,064	0,094	0,136
General structural steels	500-850 N/mm²	E	120	0,032	0,064	0,094	0,136
Carbon steels	< 800 N/mm²	E	132	0,032	0,064	0,094	0,136
Unalloyed heat-treated steels	< 700 N/mm²	E	96	0,032	0,064	0,094	0,136
Unalloyed heat-treated steels	700-850 N/mm²	E	96	0,032	0,064	0,094	0,136
Alloyed heat-treated steels	850-1000 N/mm²	E	108	0,032	0,064	0,094	0,136
Alloyed heat-treated steels	800-1200 N/mm²	E	90	0,032	0,064	0,094	0,136
Unalloyed case-hardening steels	< 750 N/mm²	E	120	0,032	0,064	0,094	0,136
Alloyed case-hardening steels	850-1200 N/mm²	E	108	0,032	0,064	0,094	0,136
Nitriding steels	1000-1200 N/mm²	E	108	0,032	0,064	0,094	0,136
Unalloyed tool steels	< 850 N/mm²	E	96	0,032	0,064	0,094	0,136
Tool steels for cold applications	850-1100 N/mm²	E	72	0,022	0,036	0,052	0,074
Tool steels for cold applications	1100-1400 N/mm²	E	72	0,022	0,036	0,052	0,074
Tool steels for hot applications	1100-1400 N/mm²	E	60	0,022	0,026	0,052	0,068
High-speed steels	850-1200 N/mm²	E	42	0,032	0,064	0,094	0,136
Spring steels	800-1200 N/mm²	E	84	0,026	0,034	0,052	0,074
Stainless steels
Stainless steels (sulphurated)	< 700 N/mm²	E	66	0,022	0,026	0,052	0,068
Stainless steels (austenitic)	< 700 N/mm²	E	48	0,022	0,026	0,052	0,068
Stainless steels (martensitic)	< 1100 N/mm²	E	46	0,022	0,026	0,052	0,068
Cast irons
Grey cast iron	< 180 HB	E	92	0,048	0,090	0,132	0,210
Spheroidal graphite iron	< 180 HB	E	86	0,026	0,052	0,078	0,126
Non-ferrous metals
Copper alloys (short-chipping)	< 600 N/mm²	E	204	0,051	0,093	0,126	0,176
Copper alloys (long-chipping)	< 600 N/mm²	E	163	0,051	0,093	0,126	0,176
Special copper alloys (< 200 HB)	< 200 HB	E	163	0,051	0,093	0,126	0,176
Special copper alloys (> 300 HB)	< 800 N/mm²	E	163	0,051	0,093	0,126	0,176
Bronze, short-chipping	< 600 N/mm²	E	163	0,051	0,093	0,126	0,176
Brass, short-chipping	< 600 N/mm²	E	204	0,051	0,093	0,126	0,176
Brass, long-chipping	< 600 N/mm²	E	204	0,051	0,093	0,126	0,176
Bronze, long-chipping	< 850 N/mm²	E	163	0,051	0,093	0,126	0,176
Aluminium (unalloyed, low-alloy)	< 400 N/mm²	E	367	0,085	0,168	0,210	0,235
Aluminium alloys	< 400 N/mm²	E	408	0,085	0,168	0,210	0,235

Cutting values
For dia. 5 to dia. 8.9
Material designation	Tensile strength	Refrigeration	v_c	f
Material designation	Tensile strength	Refrigeration	v_c	Dia. 5 to dia. 5.9	Dia. 6 to dia. 6.9	Dia. 7 to dia. 7.9	Dia. 8 to dia. 8.9
Steels
General structural steels	< 500 N/mm²	E	132	0,158	0,198	0,220	0,220
General structural steels	500-850 N/mm²	E	120	0,158	0,198	0,220	0,220
Carbon steels	< 800 N/mm²	E	132	0,158	0,198	0,220	0,220
Unalloyed heat-treated steels	< 700 N/mm²	E	96	0,158	0,198	0,220	0,220
Unalloyed heat-treated steels	700-850 N/mm²	E	96	0,158	0,198	0,220	0,220
Alloyed heat-treated steels	850-1000 N/mm²	E	108	0,158	0,198	0,220	0,220
Alloyed heat-treated steels	800-1200 N/mm²	E	90	0,158	0,198	0,220	0,220
Unalloyed case-hardening steels	< 750 N/mm²	E	120	0,158	0,198	0,220	0,220
Alloyed case-hardening steels	850-1200 N/mm²	E	108	0,158	0,198	0,220	0,220
Nitriding steels	1000-1200 N/mm²	E	108	0,158	0,198	0,220	0,220
Unalloyed tool steels	< 850 N/mm²	E	96	0,158	0,198	0,220	0,220
Tool steels for cold applications	850-1100 N/mm²	E	72	0,116	0,144	0,166	0,166
Tool steels for cold applications	1100-1400 N/mm²	E	72	0,116	0,144	0,166	0,166
Tool steels for hot applications	1100-1400 N/mm²	E	60	0,084	0,110	0,122	0,122
High-speed steels	850-1200 N/mm²	E	42	0,158	0,198	0,220	0,220
Spring steels	800-1200 N/mm²	E	84	0,084	0,122	0,132	0,132
Stainless steels
Stainless steels (sulphurated)	< 700 N/mm²	E	66	0,084	0,110	0,122	0,122
Stainless steels (austenitic)	< 700 N/mm²	E	48	0,084	0,110	0,122	0,122
Stainless steels (martensitic)	< 1100 N/mm²	E	46	0,084	0,110	0,122	0,122
Cast irons
Grey cast iron	< 180 HB	E	92	0,220	0,252	0,262	0,274
Spheroidal graphite iron	< 180 HB	E	86	0,132	0,178	0,184	0,190
Non-ferrous metals
Copper alloys (short-chipping)	< 600 N/mm²	E	204	0,194	0,256	0,259	0,264
Copper alloys (long-chipping)	< 600 N/mm²	E	163	0,194	0,256	0,259	0,264
Special copper alloys (< 200 HB)	< 200 HB	E	163	0,194	0,256	0,259	0,264
Special copper alloys (> 300 HB)	< 800 N/mm²	E	163	0,194	0,256	0,259	0,264
Bronze, short-chipping	< 600 N/mm²	E	163	0,194	0,256	0,259	0,264
Brass, short-chipping	< 600 N/mm²	E	204	0,194	0,256	0,259	0,264
Brass, long-chipping	< 600 N/mm²	E	204	0,194	0,256	0,259	0,264
Bronze, long-chipping	< 850 N/mm²	E	163	0,194	0,256	0,259	0,264
Aluminium (unalloyed, low-alloy)	< 400 N/mm²	E	367	0,253	0,317	0,334	0,352
Aluminium alloys	< 400 N/mm²	E	408	0,253	0,317	0,334	0,352

Cutting values
For dia. 9 to dia. 12.9
Material designation	Tensile strength	Refrigeration	v_c	f
Material designation	Tensile strength	Refrigeration	v_c	Dia. 9 to dia. 9.9	Dia. 10 to dia. 10.9	Dia. 11 to dia. 11.9	Dia. 12 to dia. 12.9
Steels
General structural steels	< 500 N/mm²	E	132	0,242	0,286	0,308	0,320
General structural steels	500-850 N/mm²	E	120	0,242	0,286	0,308	0,320
Carbon steels	< 800 N/mm²	E	132	0,242	0,286	0,308	0,320
Unalloyed heat-treated steels	< 700 N/mm²	E	96	0,242	0,286	0,308	0,320
Unalloyed heat-treated steels	700-850 N/mm²	E	96	0,242	0,286	0,308	0,320
Alloyed heat-treated steels	850-1000 N/mm²	E	108	0,242	0,286	0,308	0,320
Alloyed heat-treated steels	800-1200 N/mm²	E	90	0,242	0,286	0,308	0,320
Unalloyed case-hardening steels	< 750 N/mm²	E	120	0,242	0,286	0,308	0,320
Alloyed case-hardening steels	850-1200 N/mm²	E	108	0,242	0,286	0,308	0,320
Nitriding steels	1000-1200 N/mm²	E	108	0,242	0,286	0,308	0,320
Unalloyed tool steels	< 850 N/mm²	E	96	0,242	0,286	0,308	0,320
Tool steels for cold applications	850-1100 N/mm²	E	72	0,210	0,228	0,240	0,250
Tool steels for cold applications	1100-1400 N/mm²	E	72	0,210	0,228	0,240	0,250
Tool steels for hot applications	1100-1400 N/mm²	E	60	0,144	0,160	0,172	0,182
High-speed steels	850-1200 N/mm²	E	42	0,242	0,286	0,308	0,320
Spring steels	800-1200 N/mm²	E	84	0,166	0,172	0,182	0,182
Stainless steels
Stainless steels (sulphurated)	< 700 N/mm²	E	66	0,144	0,160	0,172	0,182
Stainless steels (austenitic)	< 700 N/mm²	E	48	0,144	0,160	0,172	0,182
Stainless steels (martensitic)	< 1100 N/mm²	E	46	0,144	0,160	0,172	0,182
Cast irons
Grey cast iron	< 180 HB	E	92	0,368	0,350	0,360	0,370
Spheroidal graphite iron	< 180 HB	E	86	0,236	0,230	0,234	0,240
Non-ferrous metals
Copper alloys (short-chipping)	< 600 N/mm²	E	204	0,309	0,328	0,338	0,347
Copper alloys (long-chipping)	< 600 N/mm²	E	163	0,309	0,328	0,338	0,347
Special copper alloys (< 200 HB)	< 200 HB	E	163	0,309	0,328	0,338	0,347
Special copper alloys (> 300 HB)	< 800 N/mm²	E	163	0,309	0,328	0,338	0,347
Bronze, short-chipping	< 600 N/mm²	E	163	0,309	0,328	0,338	0,347
Brass, short-chipping	< 600 N/mm²	E	204	0,309	0,328	0,338	0,347
Brass, long-chipping	< 600 N/mm²	E	204	0,309	0,328	0,338	0,347
Bronze, long-chipping	< 850 N/mm²	E	163	0,309	0,328	0,338	0,347
Aluminium (unalloyed, low-alloy)	< 400 N/mm²	E	367	0,414	0,438	0,446	0,456
Aluminium alloys	< 400 N/mm²	E	408	0,414	0,438	0,446	0,456

Cutting values
For dia. 13 to dia. 16
Material designation	Tensile strength	Refrigeration	v_c	f
Material designation	Tensile strength	Refrigeration	v_c	Dia. 13 to dia. 13.9	Dia. 14 to dia. 14.9	Dia. 15 to dia. 16
Steels
General structural steels	< 500 N/mm²	E	132	0,342	0,354	0,376
General structural steels	500-850 N/mm²	E	120	0,342	0,354	0,376
Carbon steels	< 800 N/mm²	E	132	0,342	0,354	0,376
Unalloyed heat-treated steels	< 700 N/mm²	E	96	0,342	0,354	0,376
Unalloyed heat-treated steels	700-850 N/mm²	E	96	0,342	0,354	0,376
Alloyed heat-treated steels	850-1000 N/mm²	E	108	0,342	0,354	0,376
Alloyed heat-treated steels	800-1200 N/mm²	E	90	0,342	0,354	0,376
Unalloyed case-hardening steels	< 750 N/mm²	E	120	0,342	0,354	0,376
Alloyed case-hardening steels	850-1200 N/mm²	E	108	0,342	0,354	0,376
Nitriding steels	1000-1200 N/mm²	E	108	0,342	0,354	0,376
Unalloyed tool steels	< 850 N/mm²	E	96	0,342	0,354	0,376
Tool steels for cold applications	850-1100 N/mm²	E	72	0,262	0,286	0,296
Tool steels for cold applications	1100-1400 N/mm²	E	72	0,262	0,286	0,296
Tool steels for hot applications	1100-1400 N/mm²	E	60	0,206	0,216	0,228
High-speed steels	850-1200 N/mm²	E	42	0,342	0,354	0,376
Spring steels	800-1200 N/mm²	E	84	0,228	0,228	0,240
Stainless steels
Stainless steels (sulphurated)	< 700 N/mm²	E	66	0,206	0,216	0,228
Stainless steels (austenitic)	< 700 N/mm²	E	48	0,206	0,216	0,228
Stainless steels (martensitic)	< 1100 N/mm²	E	46	0,206	0,216	0,228
Cast irons
Grey cast iron	< 180 HB	E	92	0,400	0,408	0,418
Spheroidal graphite iron	< 180 HB	E	86	0,300	0,310	0,320
Non-ferrous metals
Copper alloys (short-chipping)	< 600 N/mm²	E	204	0,382	0,392	0,402
Copper alloys (long-chipping)	< 600 N/mm²	E	163	0,382	0,392	0,402
Special copper alloys (< 200 HB)	< 200 HB	E	163	0,382	0,392	0,402
Special copper alloys (> 300 HB)	< 800 N/mm²	E	163	0,382	0,392	0,402
Bronze, short-chipping	< 600 N/mm²	E	163	0,382	0,392	0,402
Brass, short-chipping	< 600 N/mm²	E	204	0,382	0,392	0,402
Brass, long-chipping	< 600 N/mm²	E	204	0,382	0,392	0,402
Bronze, long-chipping	< 850 N/mm²	E	163	0,382	0,392	0,402
Aluminium (unalloyed, low-alloy)	< 400 N/mm²	E	367	0,520	0,530	0,538
Aluminium alloys	< 400 N/mm²	E	408	0,520	0,530	0,538

Key
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.