Twist drill bit HSS DIN 1897 type RN

Name: Twist drill bit HSS DIN 1897 type RN
Brand: Würth
SKU: 0624700410

Twist drill HSS DIN 1897 type RN
DRL-TWST-MET-DIN1897-HSS-D4,1
ZEBRA

Art.-no. 0624700410

EAN 4052712042805

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Twist drill bit HSS DIN 1897 type RN

Art.-no. 0624700410

Price for selected packaging unit

Quantity

x 10 pcs

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The extra-short, steel precision drill bit for general, broad applications in steel up to 1,000 N/mm² and in cast iron.

20 % lower infeed force compared to conventional drill bits as well as quicker work progress and more effortless working

Optimised cross web thinning

Precise spot drilling without centring, even on curved surfaces

Optimised split point

Ideal for core holes

Very precise point geometry for precise drill holes

Excellent adhesive properties of cooling lubricants and reduced buildup of material deposits

Vapour-plated surface

Product packaging made from 100 % PCR (recycled plastic from household waste) and 100 % recyclable

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Suitable for machine type	Drill, Cordless screwdrivers, Pedestal drilling machine
Material to be processed	Steel, Cast iron
Quality	ZEBRA-Premium
Standard / drilling depth	DIN 1897 / 3xD
Diameter (Ø)	4.1 mm
Length (l1)	55 mm
Chip flute length (l2)	22 mm
Shank style	Cylindrical
Surface	Vaporised
Cutting material	HSS
Type	RN
Angle of the tip	130 Degree
Service life (points system)	3 of 4 points
Drilling speed (point system)	3 of 4 points
Bore hole quality (point system) ( )	4 of 4 points
Versatility (points system)	2 of 4 points
Drilling behaviour (point system)	3 of 4 points
Suitable for drill (points system)	3 of 4 points
Suitable for cordless drills (points system)	3 of 4 points
Suitable for upright drilling machine (points system)	3 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, Cast iron, Ductile iron, Malleable cast iron, Magnesium alloys, Copper, low-alloyed, Brass, short-chipping, Brass, long-chipping, Plastics, thermoset, Plastics, thermoplastic

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. 12.5-20.0
Material designation	Tensile strength			from dia. 12.5			from dia. 16.0			from dia. 20.0
		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	637	764	0,200	497	597	0,250	398	477	0,315
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	637	764	0,200	497	597	0,250	398	477	0,315
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	637	764	0,200	497	597	0,250	398	477	0,315
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	560	637	0,160	438	497	0,200	350	398	0,250
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	560	637	0,160	438	497	0,200	350	398	0,250
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	255	407	0,125	199	318	0,160	159	255	0,200
Nitriding steels	≤ 1,200 N/mm²	10	16	255	407	0,125	199	318	0,160	159	255	0,200
Tool steels	≤ 1,200 N/mm²	10	16	255	407	0,125	199	318	0,160	159	255	0,200
High-speed steels	≤ 1,200 N/mm²	10	16	255	407	0,125	199	318	0,160	159	255	0,200
Cast metals
Cast iron	≤ 350 HB	28	32	713	815	0,250	557	637	0,315	446	509	0,400
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	560	637	0,250	438	497	0,315	350	398	0,400
Plastics
Plastics	≤ 200 N/mm²	20	30	509	764	0,200	398	597	0,250	318	477	0,315

For dia. 1.0-2.5
Material designation	Tensile strength			from dia. 1.0			from dia. 2.0			from dia. 2.5
		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	7958	9549	0,016	3979	4775	0,050	3183	3820	0,063
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	7958	9549	0,016	3979	4775	0,050	3183	3820	0,063
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	7958	9549	0,016	3979	4775	0,050	3183	3820	0,063
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	7003	7958	0,014	3501	3979	0,040	2801	3183	0,050
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	7003	7958	0,014	3501	3979	0,040	2801	3183	0,050
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	3183	5093	0,012	1592	2546	0,032	1273	2037	0,040
Nitriding steels	≤ 1,200 N/mm²	10	16	3183	5093	0,012	1592	2546	0,032	1273	2037	0,040
Tool steels	≤ 1,200 N/mm²	10	16	3183	5093	0,012	1592	2546	0,032	1273	2037	0,040
High-speed steels	≤ 1,200 N/mm²	10	16	3183	5093	0,012	1592	2546	0,032	1273	2037	0,040
Cast metals
Cast iron	≤ 350 HB	28	32	8913	10186	0,018	4456	5093	0,063	3565	4074	0,080
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	7003	7958	0,018	3501	3979	0,063	2801	3183	0,080
Plastics
Plastics	≤ 200 N/mm²	20	30	6366	9549	0,016	3183	4775	0,050	2546	3820	0,063

For dia. 6.3-10.0
Material designation	Tensile strength			from dia. 6.3			from dia. 8.0			from dia. 10.0
		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	1263	1516	0,125	995	1194	0,160	796	955	0,200
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	1263	1516	0,125	995	1194	0,160	796	955	0,200
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	1263	1516	0,125	995	1194	0,160	796	955	0,200
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	1112	1263	0,100	875	995	0,125	700	796	0,160
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	1112	1263	0,100	875	995	0,125	700	796	0,160
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	505	808	0,080	398	637	0,100	318	509	0,125
Nitriding steels	≤ 1,200 N/mm²	10	16	505	808	0,080	398	637	0,100	318	509	0,125
Tool steels	≤ 1,200 N/mm²	10	16	505	808	0,080	398	637	0,100	318	509	0,125
High-speed steels	≤ 1,200 N/mm²	10	16	505	808	0,080	398	637	0,100	318	509	0,125
Cast metals
Cast iron	≤ 350 HB	28	32	1415	1617	0,160	1114	1273	0,200	891	1019	0,250
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	1112	1263	0,160	875	995	0,200	700	796	0,250
Plastics
Plastics	≤ 200 N/mm²	20	30	1011	1516	0,125	796	1194	0,160	637	955	0,200

For dia. 3.15-5.0
Material designation	Tensile strength			from dia. 3.15			from dia. 4.0			from dia. 5.0
		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	2526	3032	0,080	1989	2387	0,100	3183	3820	0,100
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	2526	3032	0,080	1989	2387	0,100	3183	3820	0,100
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	2526	3032	0,080	1989	2387	0,100	3183	3820	0,100
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	2223	2526	0,063	1751	1989	0,080	2801	3183	0,080
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	2223	2526	0,063	1751	1989	0,080	2801	3183	0,080
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	1011	1617	0,050	796	1273	0,063	1273	2037	0,063
Nitriding steels	≤ 1,200 N/mm²	10	16	1011	1617	0,050	796	1273	0,063	1273	2037	0,063
Tool steels	≤ 1,200 N/mm²	10	16	1011	1617	0,050	796	1273	0,063	1273	2037	0,063
High-speed steels	≤ 1,200 N/mm²	10	16	1011	1617	0,050	796	1273	0,063	1273	2037	0,063
Cast metals
Cast iron	≤ 350 HB	28	32	2829	3234	0,100	2228	2546	0,125	3565	4074	0,080
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	2223	2526	0,100	1751	1989	0,125	2801	3183	0,080
Plastics
Plastics	≤ 200 N/mm²	20	30	2021	3032	0,080	1592	2387	0,100	2546	3820	0,100

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Optimum results and safety for all materials and applications

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