Quick release 1/4 inch hex shank for use in quick tool change drills' class='desclinks'>drills. 30 piece set. Case hardened drill countersinks for longer life. Adjustable drill bit length countersinks to suit material thickness. For use in quick chuck drill tools. Flat bits for use for drilling locks. Selection of screwdriver' class='desclinks'>screwdriver bits to suit various screw types and sizes found when working. Supplied in heavy duty tool holder with belt loop for ease of storage and use. Flat bit 19mm for mortise locks and 25mm for tubular latches. Drill bits 3mm, 5mm and 6mm. Drill bit guide 2.8mm for hinges. Drill countersinks with 2.4mm and 3.6mm drill bits. Twelve 25mm insert bits Pozi, Phillips, slotted and hex. Three 50mm Pozi screwdriver' class='desclinks'>screwdriver bits. Magnetic bit holder with retractable barrel. Nut drivers for 6mm, 8mm and 10mm A/F bolts. Square drive adapters 1/4-inch and 3/8-inch A/F for sockets. Set supplied in tool holder with elasticated pockets to hold quick change shank and belt strap and are hook and loop fastening. Dimensions: Size=140 mm x 165 mm Screw pouch=1 Tools up to 155 mm=10 Tools up to 80 mm=7 Screwdriver insert bits=12 Quick chucks=1 Belt strap=1