Hard wearing steel body complete with tungsten carbide knives and scorers. Suitable for producing grooves and slots in softwood, hardwood and man-made boards for biscuit jointing. For use with most biscuit jointing machines. Amana Tool 61452 Insert Carbide Lamello Biscuit Jointer 100mm D x 4mm CH x 4+4 Teeth x 22mm Bore Shaper Cutter