HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-12MM)

HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-12MM) - 1

HSS AlTiN SMART STEP stepped twist drill bit

Name: HSS AlTiN SMART STEP stepped twist drill bit
Brand: Würth
SKU: 0694451412

Stepped twist drill bit HSS AlTiN SMART STEP
DRL-STEP-SMARTSTEP-ALTIN-(D4-12MM)
ZEBRA SMART STEP

Art.-no. 0694451412

EAN 4065746562089

All versions

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HSS AlTiN SMART STEP stepped twist drill bit

Art.-no. 0694451412

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The high-performance stepped drill bit with unique SMART STEP technology, innovative rake between the individual step transitions and AlTiN coating for extremely fast, comfortable and long-lasting use in all common materials with a material thickness of up to 3.5 mm.

Innovative geometry with three chip surfaces between the individual step transitions

Up to 3x longer service life compared to all other coated stepped drill bits

Significantly faster drilling compared to all other coated stepped drill bits

Minimal effort required

Completely smooth, perfectly controlled drilling process

Greatly reduced formation of burrs

SMART STEP technology

Up to 3x faster drilling compared to conventional stepped drill bits

Precision drilling without centring or centre-punching

No warping of sheet metal

Simple drilling or enlarging of an existing drill hole

No rattling or catching in the material

Precise, circular drilling without tearing or splintering

Deep ground spiral groove

Excellent chip removal

AlTiN multilayer wear protection coating

Extremely high temperature resistance of up to 1,150°C

Very high coating hardness of 3,200 HV

Multilayer structure for optimal chip removal and improved cutting properties (prevents material becoming welded)

3-flat shank

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

Optimal power transmission

Protects the drill chuck from damage

Little effort required to open and close the drill chuck

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

Available exclusively from Wurth

Notice

Cooling not absolutely necessary, but significantly extends the service life

Observe the rotation speed table

Do not push during boring. The stepped drill bit automatically retracts into the sheet metal.

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Application area

The ideal tool for machining sheet metal.

Centring, spot drilling, boring and deburring of sheet metal, tubes and profiles in one operation, for use on both hand drills and stationary equipment.

Ideal for use in electrical trade, plumbing and heating systems, automotive workshops, mechanical engineering, switch cabinet manufacturing or container and equipment engineering.

Min./max. drill diameter	4-12 mm
Shank diameter	6 mm
Shaft length	24 mm
Length	67.5 mm
Shank style	3-face shank
Surface	AlTiN
Type description	HSS AlCrN SMART STEP
Material to be processed	Steel Cast metal Stainless steel Non-ferrous metal Plastic Wood

Art. no.	Number of steps	Diameter of the drilling area [mm]
0694451412	9	4.0/5.0/6.0/7.0/8.0/9.0/10.0/11.0/12.0
0694451420	9	4.0/6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0
0694451630	13	6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0/22.0/24.0/26.0/28.0/30.0
0694451639	12	6.0/9.0/12.0/15.0/18.0/21.0/24.0/27.0/30.0/33.0/36.0/39.0
0694451640	16	6.5/8.5/10.5/12.5/14.5/16.5/18.5/20.5/23.5/25.5/28.0/30.5/32.5/35.5/38.5/40.5
0694451637	12	6.0/9.0/12.5 (PG7)/15.2 (PG9)/18.6 (PG11)/20.4 (PG13.5)/22.5 (PG16)/26.0/28.3 (PG21)/30.5/34.0/37.0 (PG29)
0694451628	8	6.0/9.0/11.4 (PG7)/14.0 (PG9)/17.25 (PG11)/19.0 (PG13.5)/21.25 (PG16)/26.75 (PG21)
0694451538	11	5.3/7.0/9.0/10.5/14.5/18.5/23.5/27.0/30.5/34.5/38.5
0694451638	12	6.0/9.0/13.0/16.0/19.0/21.0/23.0/26.0/29.0/32.0/35.0/38.0

Cutting values
For dia. 4.0-12.0 and dia. 4.0-20.0
Material designation	Tensile strength	v_c	n
			dia. 4.0-12.0 art.		dia. 4.0-20.0 art.
			Drilling (1st drilling step)	to	Drilling (1st drilling step)	to
Steels
General structural steels	≤ 700 N/mm²	26	2000	700	2000	400
Unalloyed quenched and tempered steels	≤ 700 N/mm²	26	2000	700	2000	400
Unalloyed quenched and tempered steels	≤ 900 N/mm²	23	1800	600	1800	360
Low-alloy quenched and tempered steels	≤ 700 N/mm²	26	2000	700	2000	400
Low-alloy quenched and tempered steels	≤ 900 N/mm²	23	1800	600	1800	360
Alloyed quenched and tempered steel	≤ 1,200 N/mm²	20	1600	530	1600	320
Nitriding steels	≤ 1,200 N/mm²	20	1600	530	1600	320
Tool steels	≤ 850 N/mm²	20	1600	530	1600	320
High-speed steels	≤ 1,200 N/mm²	20	1600	530	1600	320
Stainless steels
Corrosion-resistant steels	≤ 1,200 N/mm²	11	830	300	870	190
Cast metals
Cast iron	≤ 350 HB	18	1400	470	1400	280
Spheroidal graphite and malleable iron	≤ 350 HB	18	1400	470	1400	280
Non-ferrous metals
Aluminium	≤ 450 N/mm²	23	1800	600	1800	360
Aluminium alloys	≤ 450 N/mm²	23	1800	600	1800	360
Low-alloy copper	≤ 400 N/mm²	18	1400	470	1400	280
Short-chipping brass	≤ 850 N/mm²	23	1800	600	1800	360
Long-chipping brass	≤ 850 N/mm²	23	1800	600	1800	360
Plastics
Thermosetting plastics		18	1400	470	1400	280
Thermoplastic plastics		18	1400	470	1400	280

Cutting values
For dia. 6.0-30.0 and dia. 6.0-37.0
Material designation	Tensile strength	v_c	n
			dia. 6.0-30.0 art.		dia. 6.0-37.0 art.
			Drilling (1st drilling step)	to	Drilling (1st drilling step)	to
Steels
General structural steels	≤ 700 N/mm²	26	1350	280	1350	220
Unalloyed quenched and tempered steels	≤ 700 N/mm²	26	1350	280	1350	220
Unalloyed quenched and tempered steels	≤ 900 N/mm²	23	1200	240	1200	200
Low-alloy quenched and tempered steels	≤ 700 N/mm²	26	1350	280	1350	220
Low-alloy quenched and tempered steels	≤ 900 N/mm²	23	1200	240	1200	200
Alloyed quenched and tempered steel	≤ 1,200 N/mm²	20	1050	210	1050	170
Nitriding steels	≤ 1,200 N/mm²	20	1050	210	1050	170
Tool steels	≤ 850 N/mm²	20	1050	210	1050	170
High-speed steels	≤ 1,200 N/mm²	20	1050	210	1050	170
Stainless steels
Corrosion-resistant steels	≤ 1,200 N/mm²	11	580	130	580	100
Cast metals
Cast iron	≤ 350 HB	18	1000	190	1000	150
Spheroidal graphite and malleable iron	≤ 350 HB	18	1000	190	1000	150
Non-ferrous metals
Aluminium	≤ 450 N/mm²	23	1200	240	1200	200
Aluminium alloys	≤ 450 N/mm²	23	1200	240	1200	200
Low-alloy copper	≤ 400 N/mm²	18	1000	190	1000	150
Short-chipping brass	≤ 850 N/mm²	23	1200	240	1200	200
Long-chipping brass	≤ 850 N/mm²	23	1200	240	1200	200
Plastics
Thermosetting plastics		18	1000	190	1000	150
Thermoplastic plastics		18	1000	190	1000	150

Cutting values
For dia. 6.0-39.0 and dia. 6.0-40.5
Material designation	Tensile strength	v_c	n
			dia. 6.0-39.0 art.		dia. 6.0-40.5 art.
			Drilling (1st drilling step)	to	Drilling (1st drilling step)	to
Steels
General structural steels	≤ 700 N/mm²	26	1350	210	1350	200
Unalloyed quenched and tempered steels	≤ 700 N/mm²	26	1350	210	1350	200
Unalloyed quenched and tempered steels	≤ 900 N/mm²	23	1200	190	1200	180
Low-alloy quenched and tempered steels	≤ 700 N/mm²	26	1350	210	1350	200
Low-alloy quenched and tempered steels	≤ 900 N/mm²	23	1200	190	1200	180
Alloyed quenched and tempered steel	≤ 1,200 N/mm²	20	1050	160	1050	150
Nitriding steels	≤ 1,200 N/mm²	20	1050	160	1050	150
Tool steels	≤ 850 N/mm²	20	1050	160	1050	150
High-speed steels	≤ 1,200 N/mm²	20	1050	160	1050	150
Stainless steels
Corrosion-resistant steels	≤ 1,200 N/mm²	11	580	100	580	90
Cast metals
Cast iron	≤ 350 HB	18	1000	140	1000	140
Spheroidal graphite and malleable iron	≤ 350 HB	18	1000	140	1000	140
Non-ferrous metals
Aluminium	≤ 450 N/mm²	23	1200	190	1200	180
Aluminium alloys	≤ 450 N/mm²	23	1200	190	1200	180
Low-alloy copper	≤ 400 N/mm²	18	1000	140	1000	140
Short-chipping brass	≤ 850 N/mm²	23	1200	190	1200	180
Long-chipping brass	≤ 850 N/mm²	23	1200	190	1200	180
Plastics
Thermosetting plastics		18	1000	140	1000	140
Thermoplastic plastics		18	1000	140	1000	140

Cutting values
For dia. 6.0-26.75 and dia. 5.3-38.5
Material designation	Tensile strength	v_c	n
			dia. 6.0-26.75 art.		dia. 5.3-38.5 art.
			Drilling (1st drilling step)	to	Drilling (1st drilling step)	to
Steels
General structural steels	≤ 700 N/mm²	26	1350	300	1500	210
Unalloyed quenched and tempered steels	≤ 700 N/mm²	26	1350	300	1500	210
Unalloyed quenched and tempered steels	≤ 900 N/mm²	23	1200	270	1500	190
Low-alloy quenched and tempered steels	≤ 700 N/mm²	26	1350	300	1500	210
Low-alloy quenched and tempered steels	≤ 900 N/mm²	23	1200	270	1500	190
Alloyed quenched and tempered steel	≤ 1,200 N/mm²	20	1050	230	1200	160
Nitriding steels	≤ 1,200 N/mm²	20	1050	230	1200	160
Tool steels	≤ 850 N/mm²	20	1050	230	1200	160
High-speed steels	≤ 1,200 N/mm²	20	1050	230	1200	160
Stainless steels
Corrosion-resistant steels	≤ 1,200 N/mm²	11	580	130	580	100
Cast metals
Cast iron	≤ 350 HB	18	1000	200	1000	140
Spheroidal graphite and malleable iron	≤ 350 HB	18	1000	200	1000	140
Non-ferrous metals
Aluminium	≤ 450 N/mm²	23	1200	270	1500	190
Aluminium alloys	≤ 450 N/mm²	23	1200	270	1500	190
Low-alloy copper	≤ 400 N/mm²	18	1000	200	1000	140
Short-chipping brass	≤ 850 N/mm²	23	1200	270	1500	190
Long-chipping brass	≤ 850 N/mm²	23	1200	270	1500	190
Plastics
Thermosetting plastics		18	1000	200	1000	140
Thermoplastic plastics		18	1000	200	1000	140

Cutting values
For dia. 6.0-38.0
Material designation	Tensile strength	v_c	n
			dia. 6.0-38.0 art.
			Drilling (1st drilling step)	to
Steels
General structural steels	≤ 700 N/mm²	26	1350	220
Unalloyed quenched and tempered steels	≤ 700 N/mm²	26	1350	220
Unalloyed quenched and tempered steels	≤ 900 N/mm²	23	1200	190
Low-alloy quenched and tempered steels	≤ 700 N/mm²	26	1350	220
Low-alloy quenched and tempered steels	≤ 900 N/mm²	23	1200	190
Alloyed quenched and tempered steel	≤ 1,200 N/mm²	20	1050	160
Nitriding steels	≤ 1,200 N/mm²	20	1050	160
Tool steels	≤ 850 N/mm²	20	1050	160
High-speed steels	≤ 1,200 N/mm²	20	1050	160
Stainless steels
Corrosion-resistant steels	≤ 1,200 N/mm²	11	580	100
Cast metals
Cast iron	≤ 350 HB	18	1000	150
Spheroidal graphite and malleable iron	≤ 350 HB	18	1000	150
Non-ferrous metals
Aluminium	≤ 450 N/mm²	23	1200	190
Aluminium alloys	≤ 450 N/mm²	23	1200	190
Low-alloy copper	≤ 400 N/mm²	18	1000	150
Short-chipping brass	≤ 850 N/mm²	23	1200	190
Long-chipping brass	≤ 850 N/mm²	23	1200	190
Plastics
Thermosetting plastics		18	1000	150
Thermoplastic plastics		18	1000	150

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

Additional accessory:

Product

Description

Quantity

Price
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Art.-no. 0893050004

Multi cutting oil for light to medium machining work

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