Makita Premier 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 Premier Torsion bits can last up to 10x longer than a regular screw bit, whilst an Impact Premier Insert bit can last up to 15x longer than a regular bit when coupled with an Impact Premier bit holder. The New Premier Standard - Up to 10x longer life than other screwdriver bits the new Impact Premier gives great value for money. Impact Premier Torsion bits can last up to 10x longer than a regular screw bit whilst an Impact Premier Insert bit can last up to 15x longer than a regular bit when coupled with a holder. Precision Engineering - Impact Premier Torsion Bits feature a unique design which focuses the forces exerted on.