JW 7075 39T spline drive only solid gear. This is one of the first spline drive gears we made. The top of two of the teeth got shaved off (see pics). The same thing happened to other sizes and we have been using them with no problems. The machining on the backside is also a little rougher than we like.
Bore: Universal Spline Drive Teeth: 3/32" Finish: Black Anodized