SMART STEP EU+ HSS DIN 340 twist drill bit - DRL-TWST-MET-DIN340-HSS-SMARTSTEP-10,0MM

SMART STEP EU+ HSS DIN 340 twist drill bit - DRL-TWST-MET-DIN340-HSS-SMARTSTEP-10,0MM - 1

SMART STEP EU+ HSS DIN 340 twist drill bit - DRL-TWST-MET-DIN340-HSS-SMARTSTEP-10,0MM - 2

SMART STEP EU+ HSS DIN 340 twist drill bit - DRL-TWST-MET-DIN340-HSS-SMARTSTEP-10,0MM - 3

SMART STEP EU+ HSS DIN 340 twist drill bit

Name: SMART STEP EU+ HSS DIN 340 twist drill bit
Brand: Würth
SKU: 0624921000

Twist drill bit SMART STEP EU+ HSS DIN 340
DRL-TWST-MET-DIN340-HSS-SMARTSTEP-10,0MM
ZEBRA SMART STEP

Art.-no. 0624921000

EAN 4099618232527

All versions

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SMART STEP EU+ HSS DIN 340 twist drill bit

Art.-no. 0624921000

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The long SMART STEP twist drill bit with patent-pending stepped drill bit tip geometry with extremely uneven pitch (from dia. 2.5 mm) for even faster, more comfortable drilling with unrivalled precision and service life

Extremely unequal pitch (EU+)

Up to 50 % longer service life

Significantly more comfortable drilling with less vibration, even less effort required and perfect tool guidance (up to 60 % less torque)

Up to 20 % lower energy consumption

Up to 15 % faster drilling progress

Precise, circular drilling in a wide range of materials including wood, plastic and acrylic, without tearing or splintering

Extremely comfortable drilling

Saves pre-drilling, precise tapping without running off centre

Simple boring or enlarging of an existing drill hole

Angled drilling possible

No rattling or catching - even with thin-walled material

Burr-free hole exit

Significantly faster and more energy-efficient drilling compared to conventional HSS twist drill bits

Ideal for drilling out rivets and stud bolts

3-flat shank (from dia. 4 mm)

No spinning in the drill chuck: faster, more comfortable working

Optimal power transmission

Protects the drill chuck from damage

Little effort required to loosen and tighten the drill chuck

Available exclusively from WÜRTH

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

Notice

For blind holes, please note the extended drill tip (see dimension l3)!

The steps of the innovative point geometry gradually drill to achieve the required diameter. To achieve this, the chip is broken into small individual chips by several main cutting edges, thus ensuring optimal chip removal. The result is highly precise, circular drilling.

The use of several cutting edges at the same time enables very fast, comfortable working and a long service life.

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Application area

Ideal for use in cordless drills as well as on hand-held, box column and pillar drills

Use in steel up to 1,000 N/mm², cast iron, aluminium, copper, brass, bronze, hard and soft wood, plastic (e.g. acrylic glass, HPL, screen printing plates) and composite materials (e.g. plastic profiles with steel core)

High quality of drill holes and significantly longer service life compared to conventional twist wood drill bits.

Perfect for rivet holes, drilling out stud bolts, drilling sheet metal and thin-walled profile materials (e.g. aluminium/window profiles) and for drilling on round and sloping surfaces, such as pipes.

Ideal for high-precision, comfortable and fast working in solid materials (e.g. in steel with strength of up to 1,000 N/mm², aluminium and plastics).


Suitable for machine type	Drill Cordless screwdrivers Pedestal drilling machine
Material to be processed	Steel Cast iron Non-ferrous metal Wood Hardwood
Quality	ZEBRA-Premium
Standard / drilling depth	DIN 340 / 10xD
Diameter (Ø)	10 mm
Length (l1)	184 mm
Chip flute length (l2)	121 mm
Drill tip length (l3)	11.4 mm
Shank diameter	10 mm
Shank style	3-face shank
Surface	Multiple refined
Cutting material	HSS
Service life (points system)	3 of 4 points
Drilling speed (point system)	4 of 4 points
Bore hole quality (point system) ( )	4 of 4 points
Versatility (points system)	3 of 4 points
Drilling behaviour (point system)	4 of 4 points
Suitable for drill (points system)	4 of 4 points
Suitable for cordless drills (points system)	4 of 4 points
Suitable for upright drilling machine (points system)	4 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

Cutting values for SMART STEP EU+ HSS DIN 340 twist drill bit
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
General structural steels	≤ 850 N/mm²	18	27	5732	8598	0,01	2866	4299	0,012	2292	3439	0,015
Unalloyed hardened steels	≤ 850 N/mm²	18	27	5732	8598	0,01	2866	4299	0,012	2292	3439	0,015
Low-alloy hardened steels	≤ 850 N/mm²	18	27	5732	8598	0,01	2866	4299	0,012	2292	3439	0,015
Unalloyed hardened steels	≤ 1,000 N/mm²	15	23	4777	7324	0,008	2388	3662	0,01	1910	2929	0,012
Low-alloy hardened steels	≤ 1,000 N/mm²	15	23	4777	7324	0,008	2388	3662	0,01	1910	2929	0,012
Alloyed hardened steels	≤ 1,200 N/mm²	10	15	3184	4777	0,008	1592	2388	0,01	1273	1910	0,012
Nitriding steels	≤ 1,200 N/mm²	10	15	3184	4777	0,008	1592	2388	0,01	1273	1910	0,012
Tool steels	≤ 1,200 N/mm²	10	15	3184	4777	0,008	1592	2388	0,01	1273	1910	0,012
High-speed steels	≤ 1,200 N/mm²	10	15	3184	4777	0,008	1592	2388	0,01	1273	1910	0,012
Cast iron	≤ 350 HB	15	23	4777	7324	0,008	2388	3662	0,01	1910	2929	0,012
Nodular graphite and malleable iron	≤ 350 HB	15	23	4777	7324	0,008	2388	3662	0,01	1910	2929	0,012
Aluminium	≤ 600 N/mm²	35	45	11146	14331	0,01	5573	7165	0,012	4458	5732	0,015
Thermosetting plastics		15	23	4777	7324	0,01	2388	3662	0,012	1910	2929	0,015
Thermoplastic plastics		15	23	4777	7324	0,01	2388	3662	0,012	1910	2929	0,015
Soft and light wood		21	30	6688	9554	0,012	3344	4777	0,014	2675	3821	0,017
Compact and hard wood		18	27	5732	8598	0,01	2866	4299	0,013	2292	3439	0,015

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
General structural steels	≤ 850 N/mm²	18	27	1819	2729	0,017	1433	2149	0,02	1146	1719	0,025
Unalloyed hardened steels	≤ 850 N/mm²	18	27	1819	2729	0,017	1433	2149	0,02	1146	1719	0,025
Low-alloy hardened steels	≤ 850 N/mm²	18	27	1819	2729	0,017	1433	2149	0,02	1146	1719	0,025
Unalloyed hardened steels	≤ 1,000 N/mm²	15	23	1516	2325	0,015	1194	1831	0,018	955	1464	0,021
Low-alloy hardened steels	≤ 1,000 N/mm²	15	23	1516	2325	0,015	1194	1831	0,018	955	1464	0,021
Alloyed hardened steels	≤ 1,200 N/mm²	10	15	1011	1516	0,015	796	1194	0,018	636	955	0,021
Nitriding steels	≤ 1,200 N/mm²	10	15	1011	1516	0,015	796	1194	0,018	636	955	0,021
Tool steels	≤ 1,200 N/mm²	10	15	1011	1516	0,015	796	1194	0,018	636	955	0,021
High-speed steels	≤ 1,200 N/mm²	10	15	1011	1516	0,015	796	1194	0,018	636	955	0,021
Cast iron	≤ 350 HB	15	23	1516	2325	0,015	1194	1831	0,018	955	1464	0,021
Nodular graphite and malleable iron	≤ 350 HB	15	23	1516	2325	0,015	1194	1831	0,018	955	1464	0,021
Aluminium	≤ 600 N/mm²	35	45	3538	4549	0,016	2786	3582	0,02	2229	2866	0,025
Thermosetting plastics		15	23	1516	2325	0,016	1194	1831	0,02	955	1464	0,025
Thermoplastic plastics		15	23	1516	2325	0,016	1194	1831	0,02	955	1464	0,025
Soft and light wood		21	30	2123	3033	0,018	1672	2388	0,023	1338	1910	0,028
Compact and hard wood		18	27	1819	2729	0,018	1433	2149	0,022	1146	1719	0,027

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	n		f
		from	to	from	to		from	to		from	to		from	to
										≤ 6			> 6
General structural steels	≤ 850 N/mm²	18	27	909	1364	0,027	716	1074	0,03	955	1433	0,027	573	859	0,035
Unalloyed hardened steels	≤ 850 N/mm²	18	27	909	1364	0,027	716	1074	0,03	955	1433	0,027	573	859	0,035
Low-alloy hardened steels	≤ 850 N/mm²	18	27	909	1364	0,027	716	1074	0,03	955	1433	0,027	573	859	0,035
Unalloyed hardened steels	≤ 1,000 N/mm²	15	23	758	1162	0,025	597	915	0,028	796	1220	0,025	477	732	0,031
Low-alloy hardened steels	≤ 1,000 N/mm²	15	23	758	1162	0,025	597	915	0,028	796	1220	0,025	477	732	0,031
Alloyed hardened steels	≤ 1,200 N/mm²	10	15	505	758	0,025	398	597	0,028	530	796	0,025	318	477	0,031
Nitriding steels	≤ 1,200 N/mm²	10	15	505	758	0,025	398	597	0,028	530	796	0,025	318	477	0,031
Tool steels	≤ 1,200 N/mm²	10	15	505	758	0,025	398	597	0,028	530	796	0,025	318	477	0,031
High-speed steels	≤ 1,200 N/mm²	10	15	505	758	0,025	398	597	0,028	530	796	0,025	318	477	0,031
Cast iron	≤ 350 HB	15	23	758	1162	0,025	597	915	0,028	796	1220	0,025	477	732	0,031
Nodular graphite and malleable iron	≤ 350 HB	15	23	758	1162	0,025	597	915	0,028	796	1220	0,025	477	732	0,031
Aluminium	≤ 600 N/mm²	35	45	1769	2274	0,027	1393	1791	0,03	1857	2388	0,027	1114	1433	0,035
Thermosetting plastics		15	23	758	1162	0,027	597	915	0,03	796	1220	0,027	477	732	0,035
Thermoplastic plastics		15	23	758	1162	0,027	597	915	0,03	796	1220	0,027	477	732	0,035
Soft and light wood		21	30	1061	1516	0,03	836	1194	0,033	1114	1592	0,03	668	955	0,038
Compact and hard wood		18	27	909	1364	0,03	716	1074	0,032	955	1433	0,03	573	859	0,036

For dia. 12.5-16.0
Material designation	Tensile strength			from dia. 12.5						from dia. 16.0
		v_c		n		f	n		f	n		f	n		f
		from	to	from	to		from	to		from	to		from	to
				≤ 6.5			> 6.5			≤ 8			> 8
General structural steels	≤ 850 N/mm²	18	27	881	1322	0,027	458	687	0,038	716	1074	0,03	358	537	0,04
Unalloyed hardened steels	≤ 850 N/mm²	18	27	881	1322	0,027	458	687	0,038	716	1074	0,03	358	537	0,04
Low-alloy hardened steels	≤ 850 N/mm²	18	27	881	1322	0,027	458	687	0,038	716	1074	0,03	358	537	0,04
Unalloyed hardened steels	≤ 1,000 N/mm²	15	23	734	1126	0,025	382	585	0,035	597	915	0,028	298	457	0,038
Low-alloy hardened steels	≤ 1,000 N/mm²	15	23	734	1126	0,025	382	585	0,035	597	915	0,028	298	457	0,038
Alloyed hardened steels	≤ 1,200 N/mm²	10	15	489	734	0,025	254	382	0,035	398	597	0,028	199	298	0,038
Nitriding steels	≤ 1,200 N/mm²	10	15	489	734	0,025	254	382	0,035	398	597	0,028	199	298	0,038
Tool steels	≤ 1,200 N/mm²	10	15	489	734	0,025	254	382	0,035	398	597	0,028	199	298	0,038
High-speed steels	≤ 1,200 N/mm²	10	15	489	734	0,025	254	382	0,035	398	597	0,028	199	298	0,038
Cast iron	≤ 350 HB	15	23	734	1126	0,025	382	585	0,035	597	915	0,028	298	457	0,038
Nodular graphite and malleable iron	≤ 350 HB	15	23	734	1126	0,025	382	585	0,035	597	915	0,028	298	457	0,038
Aluminium	≤ 600 N/mm²	35	45	1714	2204	0,027	891	1146	0,038	1393	1791	0,03	696	895	0,04
Thermosetting plastics		15	23	734	1126	0,027	382	585	0,038	597	915	0,03	298	457	0,04
Thermoplastic plastics		15	23	734	1126	0,027	382	585	0,038	597	915	0,03	298	457	0,04
Soft and light wood		21	30	1028	1469	0,03	535	764	0,041	836	1194	0,033	418	597	0,044
Compact and hard wood		18	27	881	1322	0,03	458	687	0,038	716	1074	0,032	358	537	0,041

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.

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