Twist drill bit HSS DIN 345 type RN

Name: Twist drill bit HSS DIN 345 type RN
Brand: Würth
SKU: 0625302700

Twist drill HSS DIN 345 type RN
DRL-TWST-MET-DIN345-MK-HSS-D27,0

Art.-no. 0625302700

EAN 4052712048784

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Twist drill bit HSS DIN 345 type RN

Art.-no. 0625302700

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Affordable, steel morse taper drill bit for general, broad applications in steel up to 1,000 N/mm² and in cast iron for use in box column drills.

Precise tapping 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

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

Product information

Würth Catalogue

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Certificates/ Documents

Suitable for machine type	Pedestal drilling machine
Material to be processed	Steel, Cast iron
Quality	Würth-Standard
Standard / drilling depth	DIN 345 / 5xD
Diameter (Ø)	27.0 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	HSS
Type	RN
Angle of the tip	118 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)	2 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)	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. 50.0-60.0
Material designation	Tensile strength			from dia. 50.0			from dia. 60.0
		v_c		n		f	n		f
		from	to	from	to		from	to
Steels
General structural steels	≤ 850 N/mm²	25	30	159	191	0,600	133	159	0,700
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	159	191	0,600	133	159	0,700
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	159	191	0,600	133	159	0,700
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	140	159	0,600	117	133	0,700
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	140	159	0,600	117	133	0,700
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	64	102	0,400	53	85	0,500
Nitriding steels	≤ 1,200 N/mm²	10	16	64	102	0,400	53	85	0,500
Tool steels	≤ 1,200 N/mm²	10	16	64	102	0,400	53	85	0,500
High-speed steels	≤ 1,200 N/mm²	10	16	64	102	0,400	53	85	0,500
Cast metals
Cast iron	≤ 350 HB	28	32	178	204	0,650	149	170	0,700
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	140	159	0,650	117	133	0,700
Plastics
Plastics	≤ 200 N/mm²	20	30	127	191	0,400	106	159	0,500

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	25	30	796	955	0,160	663	796	0,200	497	597	0,250
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	796	955	0,160	663	796	0,200	497	597	0,250
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	796	955	0,160	663	796	0,200	497	597	0,250
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	700	796	0,160	584	663	0,200	438	497	0,250
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	700	796	0,160	584	663	0,200	438	497	0,250
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	318	509	0,120	265	424	0,150	199	318	0,180
Nitriding steels	≤ 1,200 N/mm²	10	16	318	509	0,120	265	424	0,150	199	318	0,180
Tool steels	≤ 1,200 N/mm²	10	16	318	509	0,120	265	424	0,150	199	318	0,180
High-speed steels	≤ 1,200 N/mm²	10	16	318	509	0,120	265	424	0,150	199	318	0,180
Cast metals
Cast iron	≤ 350 HB	28	32	891	1019	0,240	743	849	0,260	557	637	0,300
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	700	796	0,240	584	663	0,260	438	497	0,300
Plastics
Plastics	≤ 200 N/mm²	20	30	637	955	0,120	531	796	0,150	398	597	0,180

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	25	30	249	298	0,400	221	265	0,440	199	239	0,500
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	249	298	0,400	221	265	0,440	199	239	0,500
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	249	298	0,400	221	265	0,440	199	239	0,500
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	219	249	0,400	195	221	0,440	175	199	0,500
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	219	249	0,400	195	221	0,440	175	199	0,500
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	99	159	0,300	88	141	0,320	80	127	0,360
Nitriding steels	≤ 1,200 N/mm²	10	16	99	159	0,300	88	141	0,320	80	127	0,360
Tool steels	≤ 1,200 N/mm²	10	16	99	159	0,300	88	141	0,320	80	127	0,360
High-speed steels	≤ 1,200 N/mm²	10	16	99	159	0,300	88	141	0,320	80	127	0,360
Cast metals
Cast iron	≤ 350 HB	28	32	279	318	0,500	248	283	0,540	223	255	0,580
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	219	249	0,500	195	221	0,540	175	199	0,580
Plastics
Plastics	≤ 200 N/mm²	20	30	199	298	0,300	177	265	0,320	159	239	0,360

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	25	30	398	477	0,280	332	398	0,320	284	341	0,360
Unalloyed quenched and tempered steels	≤ 850 N/mm²	25	30	398	477	0,280	332	398	0,320	284	341	0,360
Low-alloy quenched and tempered steels	≤ 850 N/mm²	25	30	398	477	0,280	332	398	0,320	284	341	0,360
Unalloyed quenched and tempered steels	≤ 1,000 N/mm²	22	25	350	398	0,280	292	332	0,320	250	284	0,360
Low-alloy quenched and tempered steels	≤ 1,000 N/mm²	22	25	350	398	0,280	292	332	0,320	250	284	0,360
Alloyed quenched and tempered steels	≤ 1,200 N/mm²	10	16	159	255	0,200	133	212	0,240	114	182	0,260
Nitriding steels	≤ 1,200 N/mm²	10	16	159	255	0,200	133	212	0,240	114	182	0,260
Tool steels	≤ 1,200 N/mm²	10	16	159	255	0,200	133	212	0,240	114	182	0,260
High-speed steels	≤ 1,200 N/mm²	10	16	159	255	0,200	133	212	0,240	114	182	0,260
Cast metals
Cast iron	≤ 350 HB	28	32	446	509	0,340	371	424	0,400	318	364	0,450
Spheroidal graphite and malleable iron	≤ 350 HB	22	25	350	398	0,340	292	332	0,400	250	284	0,450
Plastics
Plastics	≤ 200 N/mm²	20	30	318	477	0,200	265	398	0,240	227	341	0,260

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