Dewalt brad point drill bits 70 200mm dewalt dt4512 qz this 12 x 155mm drill bit from dewalt has been manufactured to a very high standard courtesy of the quality chrome vanadium alloyed steel while the centre location point and outer cutting spurs produce clean accurate holes ideal for either the professional tradesman or diy enthusiast drilling hardboard plywood chipboard and all natural hard and softwood dewalt dt4512 qz brad point drill bit 12mm x 155mm