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HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20)
HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) - 1
HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) - 2
HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) - 3
HSS SMART STEP Deepcut stepped twist drill bit - DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20) - 4

HSS SMART STEP Deepcut stepped twist drill bit

Stepped twist drill bit HSS SMART STEP Deepcut
DRL-STEP-SPRL-SMARTSTEP-DEEPCUT-(D8-20)
ZEBRA SMART STEP

Art.-no. 0694459820
EAN 4062856812394
All versions

Price for selected packaging unit
HSS SMART STEP Deepcut stepped twist drill bit

Art.-no. 0694459820

Price for selected packaging unit
Quantity
PU
x 1 pcs

Exclusively for trade customers

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The multi-functional stepped drill with AlCrN coating and unique SMART STEP technology for high-precision, flexible use in sheet metal and, for the first time, allows drilling of thicker workpieces made of conventional steel up to 1300 N/mm² strength, cast iron, aluminium, brass, bronze, Plexiglas, plastic, and wood.

Precise, circular drilling



No tool changes and shorter machining times


  • Saves pre-drilling with smaller twist drill bits, precise tapping without running off centre

  • Saves extra deburring, as the next largest step diameter performs this function

  • Combines numerous drill hole diameters in a single tool

  • Very fast tapping and accelerated drilling progress due to four high-performance cutting edges and SMART STEP technology


Flexible, smart use


  • Now also suitable for thicker workpieces with a material thickness of up to 10 mm (compared to conventional stepped drill bits, which are limited to sheet metal up to 4 mm thick)

  • Specially designed version that combines all core hole dimensions (dia. 3.3-10.2 mm) for through hole threads M4-M12 to 1.5xD in a single tool

  • For use in cordless screwdrivers and hand, box column and pillar drills.

  • Compared to using annular cutters with magnetic core drills, there are no issues when accessing hard-to-reach places (e.g. on T-beams) or due to adhesive force being too low


Extremely comfortable drilling


  • Effortless drilling

  • Completely smooth running without getting caught in the workpiece

  • No warping of sheet metal

  • Simple boring or enlarging of an existing drill hole

  • Reduced force exerted on the tool during the drilling process


AlCrN multi-layer wear protection coating


  • Extremely high temperature resistance up to 1,050 °C

  • Very high coating hardness of 3,000 HV

  • Multi-layer structure for optimal chip removal and improved cutting properties (prevents material becoming welded)


3-flat shank


Prevents spinning in the drill chuck, ensures optimal power transmission and protects the drill chuck from damage



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

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

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Instructions
  • Ensure that there is sufficient cooling/lubrication

  • Make sure that the feed is even

  • Observe the speed table

  • Do not push during core drilling — the stepped drill bit will automatically retract into the sheet metal

  • Pay attention to the total length of the stepped drill bit during drilling

Min./max. drill diameter

8-20 mm

Shank diameter

10 mm

Shaft length

25 mm

Length

110 mm

Shank style

3-face shank

Surface

AlCrN

Material to be processed

Steel, Cast metal, Non-ferrous metal, Wood, Hardwood

For dia. 22.0-30.0
Material designation Tensile strength n
Dia. 22.0-30.0
art.
1st drilling step reduce for all further steps to
General structural steels ≤ 700 N/mm² 300 200
Unalloyed hardened steels ≤ 700 N/mm² 300 200
Low-alloy hardened steels ≤ 700 N/mm² 300 200
≤ 900 N/mm² 300 200
Alloyed hardened steels ≤ 1,200 N/mm² 300 200
Nitriding steels ≤ 1,200 N/mm² 300 200
Tool steels ≤ 850 N/mm² 300 200
High-speed steels ≤ 1,200 N/mm² 300 200
Cast iron ≤ 350 HB 300 150
Spheroidal graphite and malleable iron ≤ 350 HB 300 150
Aluminium ≤ 450 N/mm² 350 200
Aluminium alloys ≤ 450 N/mm² 350 200
Low-alloy copper ≤ 400 N/mm² 300 200
Short-chipping brass ≤ 850 N/mm² 300 200
Long-chipping brass ≤ 850 N/mm² 300 200
Thermosetting plastics 300 200
Thermoplastic plastics 300 200
For dia. 9.0-19.0 and dia. 21.0-29.0
Material designation Tensile strength n
Dia. 9.0-19.0
art. 		Dia. 21.0-29.0
art.
1st drilling step reduce for all further steps to 1st drilling step reduce for all further steps to
General structural steels ≤ 700 N/mm² 700 250 350 200
Unalloyed hardened steels ≤ 700 N/mm² 700 250 350 200
Low-alloy hardened steels ≤ 700 N/mm² 700 250 350 200
≤ 900 N/mm² 700 250 350 200
Alloyed hardened steels ≤ 1,200 N/mm² 700 250 350 200
Nitriding steels ≤ 1,200 N/mm² 700 250 350 200
Tool steels ≤ 850 N/mm² 700 250 350 200
High-speed steels ≤ 1,200 N/mm² 700 250 350 200
Cast iron ≤ 350 HB 750 200 300 160
Spheroidal graphite and malleable iron ≤ 350 HB 750 200 300 160
Aluminium ≤ 450 N/mm² 1000 400 400 200
Aluminium alloys ≤ 450 N/mm² 1000 400 400 200
Low-alloy copper ≤ 400 N/mm² 750 300 300 200
Short-chipping brass ≤ 850 N/mm² 750 300 300 200
Long-chipping brass ≤ 850 N/mm² 750 300 300 200
Thermosetting plastics 750 300 300 200
Thermoplastic plastics 750 300 300 200
Key
n = rotation speed [rpm]
The suggested cutting values are reference values and must be adapted to the respective conditions.
Art. no. Number of steps Max. drilling depth Diameter of the drilling area [mm]
0694459310 6 1.5xD 3.3/4.2/5.0/6.8/8.5/10.2
0694459412 9 10 mm 4.0/5.0/6.0/7.0/8.0/9.0/10.0/11.0/12.0
0694459413 9 10 mm 4.5/5.5/6.5/7.5/8.5/9.5/10.5/11.5/12.5
0694459820 7 10 mm 8.0/10.0/12.0/14.0/16.0/18.0/20.0
0694459919 6 10 mm 9.0/11.0/13.0/15.0/17.0/19.0
0694459229 5 10 mm 21.0/23.0/25.0/27.0/29.0
0694459230 5 10 mm 22.0/24.0/26.0/28.0/30.0
For dia. 4.5-12.5 and dia. 8.0-20.0
Material designation Tensile strength n
Dia. 4.5-12.5
art. 		Dia. 8.0-20.0
art.
1st drilling step reduce for all further steps to 1st drilling step reduce for all further steps to
General structural steels ≤ 700 N/mm² 1300 400 800 250
Unalloyed heat-treated steels ≤ 700 N/mm² 1300 400 800 250
Low-alloy heat-treated steels ≤ 700 N/mm² 1300 400 800 250
≤ 900 N/mm² 1300 400 800 250
Alloyed heat-treated steels ≤ 1200 N/mm² 1300 400 800 250
Nitriding steels ≤ 1200 N/mm² 1300 400 800 250
Tool steels ≤ 850 N/mm² 1300 400 800 250
High-speed steels ≤ 1200 N/mm² 1300 400 800 250
Cast iron ≤ 350 HB 1100 300 600 200
Nodular graphite and malleable iron ≤ 350 HB 1100 300 600 200
Aluminium ≤ 450 N/mm² 2000 700 1100 350
Aluminium alloys ≤ 450 N/mm² 2000 700 1100 350
Copper, low-alloy ≤ 400 N/mm² 1500 500 850 300
Brass, short-chipping ≤ 850 N/mm² 1500 500 850 300
Brass, long-chipping ≤ 850 N/mm² 1500 500 850 300
Plastics, duroplastic 1500 500 850 300
Plastics, thermoplastic 1500 500 850 300
For dia. 3.3 - 10.2 and dia. 4.0 - 12.0
Material designation Tensile strength n
dia. 3.3 - 10.2
art. 		dia. 4.0 - 12.0
art.
1st drilling step reduce for all further steps to 1st drilling step reduce for all further steps to
General structural steels ≤ 700 N/mm² 1500 600 1500 400
Unalloyed heat-treated steels ≤ 700 N/mm² 1500 600 1500 400
Low-alloy heat-treated steels ≤ 700 N/mm² 1500 600 1500 400
≤ 900 N/mm² 1500 600 1500 400
Alloyed heat-treated steels ≤ 1200 N/mm² 1500 600 1500 400
Nitriding steels ≤ 1200 N/mm² 1500 600 1500 400
Tool steels ≤ 850 N/mm² 1500 600 1500 400
High-speed steels ≤ 1200 N/mm² 1500 600 1500 400
Cast iron ≤ 350 HB 1500 600 1200 300
Nodular graphite and malleable iron ≤ 350 HB 1500 600 1200 300
Aluminium ≤ 450 N/mm² 2500 1100 2200 700
Aluminium alloys ≤ 450 N/mm² 2500 1100 2200 700
Copper, low-alloy ≤ 400 N/mm² 1900 900 1600 500
Brass, short-chipping ≤ 850 N/mm² 1900 900 1600 500
Brass, long-chipping ≤ 850 N/mm² 1900 900 1600 500
Plastics, duroplastic 1900 900 1600 500
Plastics, thermoplastic 1900 900 1600 500
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Optimum results and safety for all materials and applications
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Product information

Würth Catalogue

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

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Technical information
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