Bore Miter Gear Bore Diameter 14 mm Bore Diameter Tolerance H7 Bore Type Finished Face Width 10 mm Finish Black Oxide For Shaft Angle 90 Degrees Gear Shape BK Hub Diameter 34 mm Hub Projection 14 mm Hub Type Hub with Set Screws Includes Set Screw Keyway Yes Keyway Depth 2.3 mm Keyway Width 5 mm Material Carbon Steel Material Grade S45C Maximum Teeth Hardness 60 HRC Metric Module Pitch 2 Minimum Teeth Hardness 50 HRC