Trend IT/7210131 Groove Cutter With Scorer 8mm 150X8X30 8-12 mm Hard wearing steel tool body complete with disposable tungsten carbide knives and scorers for improved finish. Suitable for producing grooves and slots in softwood, hardwood and man-made boards (with or without coating) on a spindle moulder. Can be used with spacer rings for comb jointing.Specification-D=150 mmKerf=8 mmBore=30 mmNo. of Teeth=4+4Max projection depth=45 mmRecommended speed=5200-8900 rpm