... Out Diameter>Φ50, spaces between teeth<25, thickness<6)Surface of Cutter: Original colour, black TiN coated. Steam treated(black) ... in both high speed and super high speed steels suitable for cutting-off, milling, and grooving steels and alloys on ... machines.Remark: The Diameter, Inner Diameter, Thickness, No. Of Teeth and surface also can be made to order carbide flat slotters for WENXING machine