Trend IT/7220081 Adjustable Groove Cutter With Scorer and Ring Nut 8-15mm8-24 mm with ring nutHard wearing steel tool body complete with disposable tungsten carbide knives and scorers for improved finish. Suitable for producing various thickness grooves and slots in softwood, hardwood and man-made boards (with or without coating) on a spindle moulder. Cutting width can be adjusted in 0.1mm steps by special threaded bush and scale without removing the cutter from the spindle.Specification-D=160 mmKerf=8.0-15.0 mmBore=30 mmNo. of Teeth=4+4Max projection depth=30 mmRecommended speed=4800-8300 rpm