This dewalt hss g drill bit set comes with 13 pieces and a convenient plastic case. This set has a precision ground twist drill bit for rapid drilling, long life and excellent concentricity. The drill bit is ground from solid stock and has a right hand cutting type n flute with a precision ground end at a 118deg point angle. Features benefits bull manufactured from high performance, high speed steel manufactured to din 33 for longer life bull drill bit set contains a selection of the most popular sizes bull precision ground twist for rapid drilling, long life and excellent concentricity bull suitable for portable or stationary drilling in steel cast steel, alloyed and non alloyed material, grey cast iron, spherical granite cast iron, sintered iron, nickel, brass etc up to 900n mmsup2 contents bull 13x hss g drill bit 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 mm