HSS Performance plain stepped twist drill bit
HSS stepped twist drill bit Performance, plain
DRL-STEP-SPRL-HSS-PERFORMANCE-(D4-20MM)
ZEBRA
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4 times longer service life
Compared to comparable bare stepped drill bits
Improved centring and up to 100% faster spot drilling
Exclusive Speed grinding
Acceleration of the overall drilling process
Significantly lower feed forces
Optimised cutting geometry
- Completely smooth running without getting caught in the workpiece
- No distortion of sheet metal
- Improved roundness of the hole
- Greatly reduced formation of burrs on the edges
Up to 80% reduction in force exerted on the tool during the drilling process
Optimised cutting profile with smoother transitions between the individual stages
3-face shank
- No twisting in the drill chuck: faster, more comfortable working
- Optimum transmission of forces
- Protection of the drill chuck from damage
- Little effort required to open and close the drill chuck
Datasheets(X)
- Centring, drilling, core drilling and deburring of sheet metal, pipes and profiles in a single step, when using both hand drills and stationary equipment.
- The latest generation of Performance stepped drill bits are ideal for processing sheet metal, panels, profiles and pipes made from conventional unalloyed steel with a strength of up to 900 N/mm2, aluminium, cast iron, brass, bronze, wood and plastics with a thickness of up to 4.0 mm. Alloyed steels with strengths of up to 900 N/mm2 can be processed up to a thickness of 2.0 mm.
- 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
Min./max. drill diameter | 4-20 mm |
Shank diameter | 8 mm |
Shaft length | 24 mm |
Length | 70 mm |
Shank style | 3-face shank |
Surface | Plain |
Type description | HSS (plain) |
Material to be processed | Steel |
| Art. no. | Number of steps | Diameter of the drilling area [mm] |
| 0694453412 | 9 | 4.0/5.0/6.0/7.0/8.0/9.0/10.0/11.0/12.0 |
| 0694453420 | 9 | 4.0/6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0 |
| 0694453421 | 9 | 4.0/6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0 |
| 0694453630 | 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 |
| 0694453637 | 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) |
| 0694453639 | 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 |
| 0694453640 | 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 |
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