Professional adjustment groover with threaded bushing and HM pre-cutting. Adjustable on milling spindle. Cutting depth: 45 mm Adjustment range: 4 -7.5 mm Diameter: 180mm Bore: 30mm Speed range: 4400-7400 with HM indexable inserts and pre-cutters. Made of steel, burnished. Suitable for hand feed. Delivered in a wooden box.