Makita Impact Gold Torsion Bits feature a unique design which focuses the forces exerted on a regular screw bit away from the tip, meaning less chance of breakage. Impact Gold Torsion bits can last up to 10x longer than a regular screw bit, whilst an Impact Gold Insert bit can last up to 15x longer than a regular bit when coupled with a holder.The New Golden Standard The Makita Torsion bits give up to 15x longer life than other screwdriver bits the new Impact Gold isn't likely to take the silver. 15x Longer Life Impact Gold Torsion bits can last up to 10x longer than a regular screw bit whilst an Impact Gold Insert bit can last up to 15x longer than a regular bit when coupled with a holder. Precision Engineering Impact Gold Torsion Bits feature a unique design which focuses the forces exerted on a regular screw bit away from the tip meaning less chance of breakage Makita Impact Gold bits are made from high strength Tarata Steel and deliver longer life than a regular screw bit, meaning less chance of breakage during the most vigorous of impact applications. Features Superior manufacturing and robust Tarata Steel 10-15-times longer bit life and superior fitment 50mm long PZ2 bits with 1/4" hex shank