alpen: Concrete, masonry drill, cylinder shaft
- Application: concrete, masonry and natural stone
- Shaft: 6.3 mm (1/4”) hex
- Design: for impact drilling and without impact even in marble
- Application: masonry and natural stone
- Shaft: cylindrical
- Design: faster because of sharp drill bit, more stable due to milled grooves - DIN: ISO 5468
- Area of application: concrete, masonry and natural stone, for rotary drilling in ceramic and marble
For impact and hammer drills with drill chuck holder - Shaft: cylindrical
- Design: hammer-resistant through the latest vacuum hardening, specially-treated surface