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Stepped twist drill bit, plain HSS
Stepped twist drill bit, plain
DRL-STEP-SPRL-HSS-(D6-30MM)
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Precise spot drilling
Thanks to self-centring drill tip
Up to 30% faster
In comparison with competitor products thanks to optimally tailored cutting edge geometry
Up to double the service life
In comparison with competitor products thanks to reduction of wear on the drill tip and the main cutting edges, as well as on the radial and axial relief grinding.
No slipping in the drill chuck
Thanks to 3-face shank and 1/4 inch bit holder
Precise working
Thanks to laser-inscribed diameters in both spiral grooves
Very little reworking required
Thanks to precise, circular drilling holes
Ensure that there is sufficient cooling/lubrication. Make sure that the feed is even. Observe the speed table.
0694422637- Core and through-holes for PG thread in accordance with DIN 40430, centre drill bit 6 mm
0694422640 - Specially for metric ISO through-holes and threaded core holes in accordance with DIN 60423, centre drill bit 6 mm
Datasheets(X)
Centring, tapping, drilling and deburring of metal sheets, pipes and profiles in a single work process.
Materials to be processed:
- Normal steels, non-ferrous metals such as aluminium, other non-ferrous base metals and plastics
Min./max. drill diameter | 6-30 mm |
Shank diameter | 10 mm |
Shaft length | 23 mm |
Length | 92 mm |
Shank style | 3-face shank |
Surface | Plain |
Type description | HSS (plain) |
| Thread | Core hole diameter mm | Through hole diameter mm |
| PG 7 | 11,40 | 12,5 |
| PG 9 | 14,00 | 15,2 |
| PG 11 | 17,25 | 18,6 |
| PG 13.5 | 19,00 | 20,4 |
| PG 16 | 21,25 | 22,5 |
| PG 21 | 26,75 | 28,3 |
| PG 29 | 34,00 | 37,0 |
| * Stepped twist drill bit HSS (plain), core and through holes for PG threads according to DIN 40430. Spotting drill 6 mm. | ||
| Thread | Step height 6 mm/thread core hole diameter mm | Step height 4 mm/through hole diameter mm |
| M 10 x 1.5 | 8,5 | 10,5 |
| M 12 x 1.5 | 10,5 | 12,5 |
| M 16 x 1.5 | 14,5 | 16,5 |
| M 20 x 1.5 | 18,5 | 20,5 |
| M 25 x 1.5 | 23,5 | 25,5 |
| M 32 x 1.5 | 30,5 | 32,5 |
| M 40 x 1.5 | 38,5 | 40,5 |
| ** Stepped twist drill bit HSS (plain), especially for metric ISO through holes and through holes according to DIN 60423. Spotting drill 6 mm. | ||