... bits, 5pcs hole saws&adaptor, 1pc manahent holder, 3pcs stop collars, 1pc screw driver, 51pcs 25mm length bits, 8pcs 50mm length ... *1613.4/12.47pcs single flute tapered drills with stop collars, counterborn&countersink:3,3.5,4,4.5,5,5 ... *1613.4/12.47pcs single flute tapered drills with stop collars, counterborn&countersink:3,3.5,4,4.5,5,5 ...