Metal drill bit 4.0x75mm, "Smart Point" progressive tip

Smart Point grinding allows progressive and burr-free, perfectly cylindrical drilling, as well as the enlargement of existing holes without risk of blockage or breakage.
Powerful drill bit for progressive drilling of resistant steels, aluminium, plastics and composites, wood and derivatives, suitable for complex surfaces and for use in portable power tools.
Simple self-centring of the drill bit on the smoothest of surfaces – also really handy when drilling into the curved materials.
Tri-flat shank prevents the rotation of the bit in the chuck.