Twist drill bit HSCo DIN 345 Type RN

Name: Twist drill bit HSCo DIN 345 Type RN
Brand: Würth
SKU: 0626302800

HSCo DIN 345 type RN twist drill bit
DRL-TWST-MET-DIN345-MK-HSCO-D28,0
ZEBRA

Art.-no. 0626302800

EAN 4052712047053

All versions

Specification

The powerful, stainless steel morse taper drill bit for box column drills for machining stainless steel (e.g. V2A, V4A), heat-resistant steels and titanium. Also suitable for general, broad applications in steel up to 1,200 N/mm² and in cast iron.

Precise spot drilling without centring, even on curved surfaces

Optimised split point

Excellent adhesive properties of cooling lubricants and a reduced tendency towards the buildup of material deposits

Vapour-plated surface

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

Technical information

Suitable for machine type	Pedestal drilling machine
Material to be processed	Steel, Cast iron, Stainless steel, Titanium
Quality	ZEBRA-Premium
Standard / drilling depth	DIN 345 / 5xD
Diameter (Ø)	28.0 mm
Suitable for morse taper tools	MK 3
Length (l1)	291 mm
Chip flute length (l2)	170 mm
Shank style	Morse taper
Surface	Vaporised
Cutting material	HSCo
Type	RN
Angle of the tip	135 Degree
Service life (points system)	3 of 4 points
Drilling speed (point system)	3 of 4 points
Bore hole quality (point system) ( )	3 of 4 points
Versatility (points system)	3 of 4 points
Drilling behaviour (point system)	3 of 4 points
Suitable for upright drilling machine (points system)	4 of 4 points
Suitable for milling-drilling centre (points system)	2 of 4 points
Self-centring	Yes
Suitable for tensile strength up to	1200 N/mm²
Material of sub-group	General structural steels, Non-alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, White cast iron, Stainless steels, martensitic, Stainless steels, sulphurated, Stainless steels, austenitic, Titanium, Titanium alloys, Spring steels, Magnesium alloys, Copper, low-alloyed, Bronze, long-chipping, Bronze, short-chipping, Brass, long-chipping, Brass, short-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.

Cutting values
For dia. 10.0-16.0
Material designation	Tensile strength			from dia. 10.0			from dia. 12.0			from dia. 16.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	30	40	955	1273	0,220	796	1061	0,250	597	796	0,280
Unalloyed quenched and tempered steels	≤ 850 N/mm²	30	40	955	1273	0,220	796	1061	0,250	597	796	0,280
Low-alloy quenched and tempered steels	≤ 850 N/mm²	30	40	955	1273	0,220	796	1061	0,250	597	796	0,280
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	28	35	891	1114	0,220	743	928	0,250	557	696	0,280
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	28	35	891	1114	0,220	743	928	0,250	557	696	0,280
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	12	18	382	573	0,200	318	477	0,220	239	358	0,240
Nitriding steels	≤ 1,200 N/mm²	12	18	382	573	0,200	318	477	0,220	239	358	0,240
Tool steels	≤ 1,200 N/mm²	12	18	382	573	0,200	318	477	0,220	239	358	0,240
High-speed steels	≤ 1,200 N/mm²	12	18	382	573	0,200	318	477	0,220	239	358	0,240
Cast metals
Cast iron	≤ 350 HB	30	35	955	1114	0,200	796	928	0,220	597	696	0,250
Spheroidal graphite and malleable iron	≤ 350 HB	26	30	828	955	0,200	690	796	0,220	517	597	0,250
Stainless steels
Stainless steels	≤ 1,200 N/mm²	10	14	318	446	0,120	265	371	0,140	199	279	0,160
Titanium	≤ 850 N/mm²	6	10	191	318	0,100	159	265	0,100	119	199	0,120
Hard materials
Spring steels	≤ 330 HB	12	18	382	573	0,100	318	477	0,100	239	358	0,120
Plastics
Plastics	≤ 200 N/mm²	20	30	637	955	0,200	531	796	0,240	398	597	0,260

For dia. 32.0-40.0
Material designation	Tensile strength			from dia. 32.0			from dia. 36.0			from dia. 40.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	30	40	298	398	0,360	265	354	0,380	239	318	0,400
Unalloyed quenched and tempered steels	≤ 850 N/mm²	30	40	298	398	0,360	265	354	0,380	239	318	0,400
Low-alloy quenched and tempered steels	≤ 850 N/mm²	30	40	298	398	0,360	265	354	0,380	239	318	0,400
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	28	35	279	348	0,360	248	309	0,380	223	279	0,400
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	28	35	279	348	0,360	248	309	0,380	223	279	0,400
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	12	18	119	179	0,320	106	159	0,340	95	143	0,360
Nitriding steels	≤ 1,200 N/mm²	12	18	119	179	0,320	106	159	0,340	95	143	0,360
Tool steels	≤ 1,200 N/mm²	12	18	119	179	0,320	106	159	0,340	95	143	0,360
High-speed steels	≤ 1,200 N/mm²	12	18	119	179	0,320	106	159	0,340	95	143	0,360
Cast metals
Cast iron	≤ 350 HB	30	35	298	348	0,420	265	309	0,460	239	279	0,500
Spheroidal graphite and malleable iron	≤ 350 HB	26	30	259	298	0,420	230	265	0,460	207	239	0,500
Stainless steels
Stainless steels	≤ 1,200 N/mm²	10	14	99	139	0,280	88	124	0,300	80	111	0,320
Titanium	≤ 850 N/mm²	6	10	60	99	0,200	53	88	0,220	48	80	0,240
Hard materials
Spring steels	≤ 330 HB	12	18	119	179	0,200	106	159	0,220	95	143	0,240
Plastics
Plastics	≤ 200 N/mm²	20	30	199	298	0,360	177	265	0,380	159	239	0,400

For dia. 20.0-28.0
Material designation	Tensile strength			from dia. 20.0			from dia. 24.0			from dia. 28.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	30	40	477	637	0,300	398	531	0,320	341	455	0,340
Unalloyed quenched and tempered steels	≤ 850 N/mm²	30	40	477	637	0,300	398	531	0,320	341	455	0,340
Low-alloy quenched and tempered steels	≤ 850 N/mm²	30	40	477	637	0,300	398	531	0,320	341	455	0,340
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	28	35	446	557	0,300	371	464	0,320	318	398	0,340
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	28	35	446	557	0,300	371	464	0,320	318	398	0,340
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	12	18	191	286	0,260	159	239	0,280	136	205	0,300
Nitriding steels	≤ 1,200 N/mm²	12	18	191	286	0,260	159	239	0,280	136	205	0,300
Tool steels	≤ 1,200 N/mm²	12	18	191	286	0,260	159	239	0,280	136	205	0,300
High-speed steels	≤ 1,200 N/mm²	12	18	191	286	0,260	159	239	0,280	136	205	0,300
Cast metals
Cast iron	≤ 350 HB	30	35	477	557	0,300	398	464	0,360	341	398	0,400
Spheroidal graphite and malleable iron	≤ 350 HB	26	30	414	477	0,300	345	398	0,360	296	341	0,400
Stainless steels
Stainless steels	≤ 1,200 N/mm²	10	14	159	223	0,200	133	186	0,240	114	159	0,260
Titanium	≤ 850 N/mm²	6	10	95	159	0,150	80	133	0,180	68	114	0,200
Hard materials
Spring steels	≤ 330 HB	12	18	191	286	0,150	159	239	0,180	136	205	0,200
Plastics
Plastics	≤ 200 N/mm²	20	30	318	477	0,280	265	398	0,320	227	341	0,340

Documents

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Accessory

Additional accessory:

Product

Description

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