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180° high-performance drill bit, solid carbide TiAlN 3xD with internal cooling
For universal use up to 1000 N/mm²
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Application
For producing drill holes with a 180° hole base in one operation
Execution
- Heavy-duty solid carbide drill with 180° precision grinding and drill heels
- Recommended pilot drill bits under art. no. 11181.
Advantage
- Drilling and sinking in a single work step at high cutting speed
- Innovative geometry ensures good chip removal
Notes
The maximum permissible inclination of the drilling surface is 45°
inclination up to 15° correction factor = 0.50
inclination up to 30° correction factor = 0.40
inclination up to 45° correction factor = 0.25
For spot drilling, multiply feed f [mm/U] by correction factor Kf
- Spot drill with reduced feed until the tool cuts to 0.25xD over the total ø
- For angled spot drilling: Retract at double feed rate f [mm/U]
- After spot drilling at reduced feed rate (correction factor), drilling continues at feed rate f [mm/U] according to recommended cutting data without correction factors
- Setting a pilot hole is recommended for drilling on flat surfaces.
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!