Over all Dia. 7-3/32”, Carbide Height 1-5/16”, Bore Dia. 1 1/4”. This Lock Miter Set consist of two three-wing cutters. One sits inside the other to allow the joining of boards from 5/8" thick to 1-3/16" thick. After mounting the head on the spindle, a test piece should be made. One piece is run horizontally and the second is run vertically. Shims are included to allow for adjusting joint tightness. 1-1/4" bore