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
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Precise, circular holes
No tool changes and shorter machining times
- Eliminates pre-drilling with smaller twist drill bits, precise spot drilling without running off-centre
- Eliminates additional deburring, as the next largest step diameter performs this function
- Combines numerous drill hole diameters in a single tool
- Very fast spot drilling 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.
- Unlike when using annular cutters with magnetic core drills, there are no issues in accessing hard-to-reach places (e.g. on T-beams) or due to low adhesive force
Extremely comfortable drilling
- Effortless drilling
- Completely smooth running without getting caught in the workpiece
- No warping of sheet metal
- Simple drilling 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 of 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 from 100 % PCR (recycled plastic from household waste) and 100 % recyclable
Datasheets(X)
- 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 |
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 |
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