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HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM) HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM) HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM)
HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM) - 1
HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM) - 2
HSS AlTiN SMART STEP stepped twist drill bit - DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM) - 3

HSS AlTiN SMART STEP stepped twist drill bit

Stepped twist drill bit HSS AlTiN SMART STEP
DRL-STEP-SMARTSTEP-ALTIN-(D4-20MM)
ZEBRA SMART STEP

Art.-no. 0694451420
EAN 4065746562034
All versions

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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 spot drilling compared to conventional stepped drill bits

  • Precision spot 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 holes without tearing or splintering


Deep-ground spiral flute


Excellent chip removal



AlTiN multi-layer wear protection coating


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

  • Very high coating hardness of 3,200 HV

  • Multi-layer 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

  • Minimal effort required to loosen and tighten the drill chuck


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



Available exclusively from Würth

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)

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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

4-20 mm

Shank diameter

8 mm

Shaft length

24 mm

Length

71.5 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

Key
vc = cutting speed [m/min]
n = rotation speed [rpm]
The suggested cutting values are reference values and must be adapted to the respective conditions.
For dia. 6.0-37.0 and dia. 6.0-39.0
Material designation Tensile strength vc n
Dia. 6.0-37.0
art. 		Dia. 6.0-39.0
art.
Drilling (1st drilling step) to Drilling (1st drilling step) to
Steels
General structural steels ≤ 700 N/mm² 26 1350 220 1350 210
Unalloyed quenched and tempered steels ≤ 700 N/mm² 26 1350 220 1350 210
≤ 900 N/mm² 23 1200 200 1200 190
Low-alloy quenched and tempered steels ≤ 700 N/mm² 26 1350 220 1350 210
≤ 900 N/mm² 23 1200 200 1200 190
Alloyed quenched and tempered steel ≤ 1,200 N/mm² 20 1050 170 1050 160
Nitriding steels ≤ 1,200 N/mm² 20 1050 170 1050 160
Tool steels ≤ 850 N/mm² 20 1050 170 1050 160
High-speed steels ≤ 1,200 N/mm² 20 1050 170 1050 160
Stainless steels
Corrosion-resistant steels ≤ 1,200 N/mm² 11 580 100 580 100
Cast metals
Cast iron ≤ 350 HB 18 1000 150 1000 140
Spheroidal graphite and malleable iron ≤ 350 HB 18 1000 150 1000 140
Non-ferrous metals
Aluminium ≤ 450 N/mm² 23 1200 200 1200 190
Aluminium alloys ≤ 450 N/mm² 23 1200 200 1200 190
Low-alloy copper ≤ 400 N/mm² 18 1000 150 1000 140
Short-chipping brass ≤ 850 N/mm² 23 1200 200 1200 190
Long-chipping brass ≤ 850 N/mm² 23 1200 200 1200 190
Plastics
Thermosetting plastics 18 1000 150 1000 140
Thermoplastic plastics 18 1000 150 1000 140
For dia. 5.0-29.0 and dia. 6.0-30.0
Material designation Tensile strength vc n
Dia. 5.0-29.0
art. 		Dia. 6.0-30.0
art.
Drilling (1st drilling step) to Drilling (1st drilling step) to
Steels
General structural steels ≤ 700 N/mm² 26 1600 208 1350 280
Unalloyed quenched and tempered steels ≤ 700 N/mm² 26 1600 280 1350 280
≤ 900 N/mm² 23 1500 250 1200 240
Low-alloy quenched and tempered steels ≤ 700 N/mm² 26 1600 280 1350 280
≤ 900 N/mm² 23 1500 250 1200 240
Alloyed quenched and tempered steel ≤ 1,200 N/mm² 20 1200 210 1050 210
Nitriding steels ≤ 1,200 N/mm² 20 1200 210 1050 210
Tool steels ≤ 850 N/mm² 20 1200 210 1050 210
High-speed steels ≤ 1,200 N/mm² 20 1200 210 1050 210
Stainless steels
Corrosion-resistant steels ≤ 1,200 N/mm² 11 700 120 580 130
Cast metals
Cast iron ≤ 350 HB 18 1100 200 1000 190
Spheroidal graphite and malleable iron ≤ 350 HB 18 1100 200 1000 190
Non-ferrous metals
Aluminium ≤ 450 N/mm² 23 1500 250 1200 240
Aluminium alloys ≤ 450 N/mm² 23 1500 250 1200 240
Low-alloy copper ≤ 400 N/mm² 18 1100 200 1000 190
Short-chipping brass ≤ 850 N/mm² 23 1500 250 1200 240
Long-chipping brass ≤ 850 N/mm² 23 1500 250 1200 240
Plastics
Thermosetting plastics 18 1100 200 1000 190
Thermoplastic plastics 18 1100 200 1000 190
For dia. 5.3-38.5 and dia. 6.0-38.0
Material designation Tensile strength vc n
Dia. 5.3-38.5
art. 		Dia. 6.0-38.0
art.
Tapping (1st drilling step) to Tapping (1st drilling step) to
Steels
General structural steels ≤ 700 N/mm² 26 1500 210 1350 220
Unalloyed hardened steels ≤ 700 N/mm² 26 1500 210 1350 220
≤ 900 N/mm² 23 1500 190 1200 190
Low-alloy hardened steels ≤ 700 N/mm² 26 1500 210 1350 220
≤ 900 N/mm² 23 1500 190 1200 190
Alloyed hardened steels ≤ 1,200 N/mm² 20 1200 160 1050 160
Nitriding steels ≤ 1,200 N/mm² 20 1200 160 1050 160
Tool steels ≤ 850 N/mm² 20 1200 160 1050 160
High-speed steels ≤ 1,200 N/mm² 20 1200 160 1050 160
High-grade steels
Stainless steels ≤ 1,200 N/mm² 11 580 100 580 100
Cast metals
Cast iron ≤ 350 HB 18 1000 140 1000 150
Spheroidal graphite and malleable iron ≤ 350 HB 18 1000 140 1000 150
Non-ferrous metals
Aluminium ≤ 450 N/mm² 23 1500 190 1200 190
Aluminium alloys ≤ 450 N/mm² 23 1500 190 1200 190
Low-alloy copper ≤ 400 N/mm² 18 1000 140 1000 150
Short-chipping brass ≤ 850 N/mm² 23 1500 190 1200 190
Long-chipping brass ≤ 850 N/mm² 23 1500 190 1200 190
Plastics
Thermosetting plastics 18 1000 140 1000 150
Thermoplastics 18 1000 140 1000 150
For dia. 6.0-40.5 and dia. 6.0-26.75
Material designation Tensile strength vc n
Dia. 6.0-40.5
art. 		Dia. 6.0-26.75
art.
Drilling (1st drilling step) to Tapping (1st drilling step) to
Steels
General structural steels ≤ 700 N/mm² 26 1350 200 1350 300
Unalloyed quenched and tempered steels ≤ 700 N/mm² 26 1350 200 1350 300
≤ 900 N/mm² 23 1200 180 1200 270
Low-alloy quenched and tempered steels ≤ 700 N/mm² 26 1350 200 1350 300
≤ 900 N/mm² 23 1200 180 1200 270
Alloyed quenched and tempered steel ≤ 1,200 N/mm² 20 1050 150 1050 230
Nitriding steels ≤ 1,200 N/mm² 20 1050 150 1050 230
Tool steels ≤ 850 N/mm² 20 1050 150 1050 230
High-speed steels ≤ 1,200 N/mm² 20 1050 150 1050 230
Stainless steels
Corrosion-resistant steels ≤ 1,200 N/mm² 11 580 90 580 130
Cast metals
Cast iron ≤ 350 HB 18 1000 140 1000 200
Spheroidal graphite and malleable iron ≤ 350 HB 18 1000 140 1000 200
Non-ferrous metals
Aluminium ≤ 450 N/mm² 23 1200 180 1200 270
Aluminium alloys ≤ 450 N/mm² 23 1200 180 1200 270
Low-alloy copper ≤ 400 N/mm² 18 1000 140 1000 200
Short-chipping brass ≤ 850 N/mm² 23 1200 180 1200 270
Long-chipping brass ≤ 850 N/mm² 23 1200 180 1200 270
Plastics
Thermosetting plastics 18 1000 140 1000 200
Thermoplastic plastics 18 1000 140 1000 200
Art. no. Number of steps Diameter of the drilling area [mm]
0694451330 14 3.5/5.5/7.5/9.5/11.5/13.5/15.5/17.5/19.5/21.5/23.5/25.5/27.5/29.5
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
0694451429 13 4.5/6.5/8.5/10.5/12.5/14.5/16.5/18.5/20.5/22.5/24.5/26.5/28.5
0694451529 13 5.0/7.0/9.0/11.0/13.0/15.0/17.0/19.0/21.0/23.0/25.0/27.0/29.0
0694451538 11 5.3/7.0/9.0/10.5/14.5/18.5/23.5/27.0/30.5/34.5/38.5
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)
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
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)
0694451638 11 5.3/7.0/9.0/10.5/14.5/18.5/23.5/27.0/30.5/34.5/38.5
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
For dia. 3.5-29.5 and dia. 4.5-28.5
Material designation Tensile strength vc n
Dia. 3.5-29.5
art. 		Dia. 4.5-28.5
art.
Drilling (1st drilling step) to Drilling (1st drilling step) to
Steels
General structural steels ≤ 700 N/mm² 26 2300 280 1800 290
Unalloyed quenched and tempered steels ≤ 700 N/mm² 26 2300 280 1800 290
≤ 900 N/mm² 23 2000 250 1600 250
Low-alloy quenched and tempered steels ≤ 700 N/mm² 26 2300 280 1800 290
≤ 900 N/mm² 23 2000 250 1600 250
Alloyed quenched and tempered steel ≤ 1,200 N/mm² 20 1800 210 1400 210
Nitriding steels ≤ 1,200 N/mm² 20 1800 210 1400 210
Tool steels ≤ 850 N/mm² 20 1800 210 1400 210
High-speed steels ≤ 1,200 N/mm² 20 1800 210 1400 210
Stainless steels
Corrosion-resistant steels ≤ 1,200 N/mm² 11 1000 120 750 120
Cast metals
Cast iron ≤ 350 HB 18 1600 200 1250 200
Spheroidal graphite and malleable iron ≤ 350 HB 18 1600 200 1250 200
Non-ferrous metals
Aluminium ≤ 450 N/mm² 23 2000 250 1600 250
Aluminium alloys ≤ 450 N/mm² 23 2000 250 1600 250
Low-alloy copper ≤ 400 N/mm² 18 1600 200 1250 200
Short-chipping brass ≤ 850 N/mm² 23 2000 250 1600 250
Long-chipping brass ≤ 850 N/mm² 23 2000 250 1600 250
Plastics
Thermosetting plastics 18 1600 200 1250 200
Thermoplastic plastics 18 1600 200 1250 200
For dia. 4.0-12.0 and dia. 4.0-20.0
Material designation Tensile strength vc 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
≤ 900 N/mm² 23 1800 600 1800 360
Low-alloy quenched and tempered steels ≤ 700 N/mm² 26 2000 700 2000 400
≤ 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
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Quantity
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Product information

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Datasheets()

Datasheets ()

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Certificates/ Documents

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