Burghiu spiral Format 10100720, 9110100720

Jobber drill with cyl. shank Design: Profile grinding, right cutting, bright surface with precision ground point and wide, ground flute length and narrow twist. Without point thinning. Angle of rake larger than normal, normal core thickness and without core gradient. Application: Especially suitable for soft and long-chipping materials, aluminium alloys (long-chipping), zinc, copper (long-chipping), silumin, electrodes, plastics (soft) and wood.