Get all your doweling needs met with this handy dowel set! The set includes four black oxide-coated doweling centers to correctly position marks for drilling precise second holes and a brad point drill bit with adjustable auto-stop collar designed to resist clogging and reject wood chips. Also included are fluted, premium ash wood dowel pins. 34 pieces in all. Size(s) Drill bit: 3-3/4 in. L x 1/4 in. ; Dowel: 1-1/2 in. L x 1/4 in. diameter