Twist drill bit HSS DIN 1869 R1 type RN

Name: Twist drill bit HSS DIN 1869 R1 type RN
Brand: Würth
SKU: 0625400800

Twist drill HSS DIN 1869 R1 type RN
DRL-TWST-MET-DIN1869-R1-HSS-D8,0

Art.-no. 0625400800

EAN 4052712047930

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Twist drill bit HSS DIN 1869 R1 type RN

Art.-no. 0625400800

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Quantity

x 3 pcs

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The extra-long, steel deep-hole drill bit for drilling deep holes in steel up to 1,000 N/mm², in cast iron and in composite materials (e.g. plastic profiles with steel core).

Vapour-plated surface for excellent adhesive properties of cooling lubricants and a reduced tendency towards the buildup of material deposits

Product packaging made of 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified^® Bronze

Notice

When using the drill bit in accordance with DIN 1869, it is recommended to create a pilot hole with a depth of 1xD to 2xD. Our extra-short precision drill bit in accordance with DIN 1897 (art. no. 062470…) is ideal for this task.

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Suitable for machine type	Drill, Cordless screwdrivers, Milling/drill center, Pedestal drilling machine
Material to be processed	Steel, Cast iron
Quality	Würth-Standard
Standard / drilling depth	DIN 1869 / 20xD
Diameter (Ø)	8.0 mm
Length (l1)	240 mm
Chip flute length (l2)	165 mm
Shank style	Cylindrical
Surface	Vaporised
Cutting material	HSS
Type	RN
Angle of the tip	118 Degree
Service life (points system)	2 of 4 points
Drilling speed (point system)	2 of 4 points
Bore hole quality (point system) ( )	2 of 4 points
Versatility (points system)	2 of 4 points
Drilling behaviour (point system)	3 of 4 points
Suitable for drill (points system)	2 of 4 points
Suitable for cordless drills (points system)	2 of 4 points
Suitable for upright drilling machine (points system)	2 of 4 points
Suitable for milling-drilling centre (points system)	1 of 4 points
Self-centring	Yes
Suitable for tensile strength up to	1000 N/mm²
Material of sub-group	General structural steels, Non-alloyed tempering steels, Tool steels, Cast iron, Ductile iron, Malleable cast iron, Brass, short-chipping, Brass, long-chipping, Plastics, thermoset, Plastics, thermoplastic

For dia. 4.0-6.0
Material designation	Tensile strength			from dia. 4.0			from dia. 5.0			from dia. 6.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	25	30	1989	2387	0,060	1592	1910	0,080	1326	1592	0,100
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	1989	2387	0,060	1592	1910	0,080	1326	1592	0,100
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	1989	2387	0,060	1592	1910	0,080	1326	1592	0,100
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	1751	1989	0,060	1401	1592	0,080	1167	1326	0,100
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	1751	1989	0,060	1401	1592	0,080	1167	1326	0,100
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	796	1273	0,050	637	1019	0,060	531	849	0,080
Nitriding steels	≤ 1,200 N/mm²	10	16	796	1273	0,050	637	1019	0,060	531	849	0,080
Tool steels	≤ 1,200 N/mm²	10	16	796	1273	0,050	637	1019	0,060	531	849	0,080
High-speed steels	≤ 1,200 N/mm²	10	16	796	1273	0,050	637	1019	0,060	531	849	0,080
Cast metals
Cast iron	≤ 350 HB	28	32	2228	2546	0,060	1783	2037	0,080	1485	1698	0,100
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	1751	1989	0,060	1401	1592	0,080	1167	1326	0,100
Plastics
Plastics	≤ 200 N/mm²	20	30	1592	2387	0,050	1273	1910	0,060	1061	1592	0,080

Key
v_c = cutting speed [m/min]
f = feed [mm/r]
n = rotation speed [rpm]
The suggested cutting values are reference values and must be adapted to the respective conditions.

For dia. 8.0-13.0
Material designation	Tensile strength			from dia. 8.0			from dia. 10.0			from dia. 13.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	25	30	995	1194	0,120	796	955	0,140	612	735	0,160
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	995	1194	0,120	796	955	0,140	612	735	0,160
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	995	1194	0,120	796	955	0,140	612	735	0,160
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	875	995	0,120	700	796	0,140	539	612	0,160
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	875	995	0,120	700	796	0,140	539	612	0,160
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	398	637	0,100	318	509	0,100	245	392	0,120
Nitriding steels	≤ 1,200 N/mm²	10	16	398	637	0,100	318	509	0,100	245	392	0,120
Tool steels	≤ 1,200 N/mm²	10	16	398	637	0,100	318	509	0,100	245	392	0,120
High-speed steels	≤ 1,200 N/mm²	10	16	398	637	0,100	318	509	0,100	245	392	0,120
Cast metals
Cast iron	≤ 350 HB	28	32	1114	1273	0,120	891	1019	0,140	686	784	0,160
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	875	995	0,120	700	796	0,140	539	612	0,160
Plastics
Plastics	≤ 200 N/mm²	20	30	796	1194	0,100	637	955	0,100	490	735	0,120

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