40 Piece 3/8, 1/2" Sq. Dr. Mechanic's bit set

Expert Quality, insert bits manufactured from S2 silicon steel, hardened and tempered with shot blasted finish. Bit holders made from chrome vanadium steel hardened, tempered and chrome plated. Spare bits are available. Packed in steel case and display carton

   bit holder 10mm hexagon x 3/8" sq. drive

   bit holder 10mm hexagon x 1/2" sq. drive

   7 Draper TX-STAR bits: T20, T25, T30, T40, T45, T50 and T55 x 30mm long

   7 Draper TX-STAR bits: T20, T25, T30, T40, T45, T50 and T55 x 75mm long

   5 XZN spline bits: 5, 6, 8, 10 and 12mm x 30mm long

   5 XZN spline bits: 5, 6, 8, 10 and 12mm x 75mm long

   7 hexagonal bits: 4, 5, 6, 7, 8, 10 and 12 x 30mm long

   7 hexagonal bits: 4, 5, 6, 7, 8, 10 and 12mm x 75mm long