Y.T. Solid UFO T-Slot Insert - Cast Iron - 30mm Cutter Diameter 3mm Thickness 6.5mm Cutting Depth 8 Teeth (3T1630-3.0-ME-F20)The tapered polygon interface is made by complete grinded processing to keep the lowest tolerance of connect positioning 0. 01mm and optimize machining accuracy and insert life. Min. thickness of insert starts from 0. 5mm, the whole range of insert dia. from 10 ~ 32 mm. In small thickness, we stock every 0. 1mm as standard item in stock. In complete range of specifications and great performance in chip evacuation, Y. T. UFO T slot cutter is always the