Trend RT/323X1/2TC Rota-Tip stair cutter 22 mm diameterFor Stair Housing JigsSolid Carbide replaceable blades. Tool body remains in place when changing blades, thus reducing down-time. 1/2 inch shank tools are ideal for use in production applications. Clear economical advantage over conventional brazed tip tooling. Designed for stair housing machine and jigs. Use a reduced feed speed to prolong tool life.Specification-D=22 mmC=28 mmOL=80 mmA=95 deg.Shank Diameter=1/2 inch