Among the millions of driver bits produced worldwide each year,only a small percentage reach the high quality standards of Alpha.AlphaâjQuery211015036520358604033_1509506146098s Thunder ZoneImpact Driver Bit range features a patented Spiral Impact Zone, andis the ultimate torsion bit for Impact Drivers. Features includePremium quality S2 raw material, precision head manufacturing, fullbody hardness and magnetism. The result? Alpha driver bits showless wear, have a longer service life, experience less cam-out, andprovide overall improved operational and economic benefits.