Supplied in a solid plastic box, this 3-piece adjustable grooving set ideal tools to create precision slots and grooves in materials from 5/32 to 19/32 inches in depth by using the CMT 3 piece adjustable grooving set. It includes 3 cutter heads (2 of type A, 1 of type B), 12 spacer rings from 0.1 to 2mm. Perfect grooving in all materials, but ideal on solid woods, plywood and laminated panels. Cutter head set also features super-strength steel body, tool for manual feed (MAN) and pins for the automatic positioning of the knives. See Shaper Accessories for bore reducers. Legend below explains sizing. Select your item(s) then click Add to Cart.