SC twist drill bit, internal cooling DIN 6537L - DRL-TWST-DIN6537L-AL-IC-SC-ZOX-HB-D2,8MM

SC twist drill bit, internal cooling DIN 6537L

Name: SC twist drill bit, internal cooling DIN 6537L
Brand: Würth
SKU: 5443002638

Twist drill SD DIN6537L 5xD type W IC ZOX Alu
DRL-TWST-DIN6537L-AL-IC-SC-ZOX-HB-D2,8MM

Art.-no. 5443002638

EAN 4055375914717

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SC twist drill bit, internal cooling DIN 6537L

Art.-no. 5443002638

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With internal cooling channels, in particular for machining aluminium. 6 drill heels ensure very high alignment accuracy and stabilisation of the drill bit, including with very high cutting speeds and feed rates. Special coating prevents built-up edges owing to extremely smooth surface.

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Product code	6847
Material to be processed	Copper, Brass, Aluminium
Standards	DIN 6537
Design	Long
Surface	ZOX
Max. drilling depth (D)	5xD
Cutting material	SC
Number of guiding chamfers	6 PCS
Angle of the tip	135 Degree
Number of cutting edges	2 PCS
Coolant supply	Internal
Diameter (d1)	2.8 mm
Shank style	Cylindrical DIN 6535-HB
Length (l1)	57 mm
Chip flute length (l2)	21 mm
Tolerance of cutting edge diameter	h7
Shank diameter (d2)	4 mm
Tolerance of shank diameter	h6
Material of sub-group	Copper, Brass, Aluminium

Cutting values for solid carbide high-performance drill Speeddrill, aluminium, 5xd1 with internal cooling
For dia. 2.8 to dia. 8.9
Material designation	Tensile strength	Cooling	v_c	f
				Dia. 2.8 to dia. 5.9	Dia. 6 to dia. 8.9
Aluminium, aluminium alloys	< 530 N/mm²	E	360	0,300	0,400
Aluminium, cast aluminium alloys < 10 % Si	< 600 N/mm²	E	360	0,350	0,450
Aluminium, cast aluminium alloys > 10 % Si	< 600 N/mm²	E	350	0,300	0,400
Copper, low-alloy	< 350 N/mm²	E	160	0,230	0,300
Brass, short-chipping	< 600 N/mm²	E	200	0,230	0,300
Brass, long-chipping	< 600 N/mm²	E	200	0,230	0,300
Bronze, short-chipping	< 600 N/mm²	E	200	0,230	0,300
Bronze, short-chipping	650-850 N/mm²	E	200	0,230	0,300
Bronze, long-chipping	< 850 N/mm²	E	200	0,230	0,300
Bronze, long-chipping	850-1200 N/mm²	E	200	0,230	0,300

Legend
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, aluminium, 5xd1 with internal cooling
For dia. 9 to dia. 16
Material designation	Tensile strength	Cooling	v_c	f
				Dia. 9 to dia. 11.9	Dia. 12 to dia. 16
Aluminium, aluminium alloys	< 530 N/mm²	E	360	0,500	0,600
Aluminium, cast aluminium alloys < 10 % Si	< 600 N/mm²	E	360	0,550	0,650
Aluminium, cast aluminium alloys > 10 % Si	< 600 N/mm²	E	350	0,500	0,600
Copper, low-alloy	< 350 N/mm²	E	160	0,380	0,450
Brass, short-chipping	< 600 N/mm²	E	200	0,380	0,450
Brass, long-chipping	< 600 N/mm²	E	200	0,380	0,450
Bronze, short-chipping	< 600 N/mm²	E	200	0,380	0,450
Bronze, short-chipping	650-850 N/mm²	E	200	0,380	0,450
Bronze, long-chipping	< 850 N/mm²	E	200	0,380	0,450
Bronze, long-chipping	850-1200 N/mm²	E	200	0,380	0,450