Monopiece. Reinforced shank Ø 3,17 mm
• In stock from 0,4 mm to 3,17 mm
• Minimum drilling speed 20 000 rpm
• smallest is the diameter, higher will be the speed
• Descent speed from 1,6 to 4 m/min
• Option: drill bits with ring upon request
Available in packs of 10 (more economical)