The double chamfer allows an exact lead in the drilling hole, also in low drilling depths and prevents chips of stucking between drill bit and hole walls
These drill bits are particularly suitable for drilling plug holes and for drilling fibreboard, plywood pine, beech, oak and similar hardwood and softwood. The precisely ground shoulder cutters provide completely round holes without any tearing. The special centring tip makes drilling of exact pilot holes possible.
Similar to DIN 7487
Double chamfer from 5 mm Ø for Art. 180
Milled and hardened
Made of CV-alloyed silver steel
CBN ground tip
With carvers
Burnished and ground surface
In all rotary and percussion drilling machines
In machines for mechanical processing
