0.443" hole diameter 0.740" outside diameter 0.032" material thickness key at point of attachment narrows at an angle of 45.0 deg to a rounded right angle, 0.060 in. width key
0.443" hole diameter 0.740" outside diameter 0.016" material thickness key at point of attachment narrows at an angle of 45.0 deg to a rounded right angle to 0.060 in. width key
