The KRINO SPA Hammer drill bit with 4 cutting edges and 4 flutes, this monobloc carbide plate with 4 cutting edges is welded to the body by diffusion, this new technology guarantees an extremely stable bond between the carbide plate and the body of the tip, because the junction takes place in the solid state by diffusion of the atoms in the crystalline lattice at the interface between the two pieces.

Use for cutting multi materials
Milled body with L groove guarantees excellent debris evacuation