Trend IT/7210171 Groove Cutter With Scorer 10mm 180X10X308-12 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=180 mmKerf=10 mmBore=30 mmNo. of Teeth=4+8Max projection depth=55 mmRecommended speed=4200-7200 rpm