General Tools 888 Dowel Centers, 1/4 – 5/16 – 3/8 – 1/2 dowel centers are the quickest and most accurate method to locate, transfer and match dowel holesMade of nickel plated steelSizes of joiner are 1/4″, 5/16″, 3/8″, 1/2″ diameterGeneral 888 8 Piece Dowel Center Set provides a quick and accurate method of transferring dowel hole locations from one wood piece to another. Simply place the appropriate size Dowel Center in the existing hole and press the board up to another wood piece. The set covers four popular dowel sizes and includes two Centers per size. Click Here. Double your traffic. Get Vendio Gallery – Now FREE!