- Genuine MILWAUKEE accessories; - THUNDERWEB design is characterised by a conical shaped web which gets thicker towards the back of the drill bit. Standard drill bits have a constant thickness throughout their length. Even at the narrowest point the THUNDERWEB core is thicker than that of a standard drill bit; - Parabolic web cross section: Large web thickness. Strength built in; - Flute geometry - THUNDERWEB flute form ejects hot chips rapidly. Dissipates heat better increasing life time; - 135° Split point - Precision starting, drill bit won't walk on material surface; - Polished finish reduces friction and extends drill bit life.