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Subland stepped drill bit type N HSS, medium quality grade
For 180° cylinder head screws
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Application
For through holes in accordance with DIN EN 20273 and screw head countersinking 180° in accordance with DIN 974-1, series 1. For screws in accordance with DIN 6912, 7984, 34821, DIN EN ISO 1207, 4762, 14579, 14580
Execution
- Drill and countersink step with independent chip grooves and drill heels; regrinding does not affect the profile
Advantage
- precise alignment of drill diameter and countersink diameter, lower process costs
- universal use, therefore tool costs are reduced to a minimum and user flexibility is increased
Select RAL-colour code
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