HSS 5862045

High Speed Steel Involute Metric Gear Cutter with 20? Pressure Angle. HSS TMX Involute Gear Cutters 20? Pressure Angle, Metric, Module M4.5 with 90 mm cutter diameter x 32 mm hole diameter - cutter # 1 for 12-13 range of teeth.<br><ul style="margin-top:0px; padding-top: 5px; padding-bottom: 5px;"><li>Designed to mill spur gears, 8 cutters are required to provide a full set of gears from 12 teeth to a rack</li></ul><br><br>