### Clausing 8520 Mill | Dales Shop - Wentz Tech

The last pinion that drives the last gear that slides on the spline is 24 DP instead of 32 DP. It turns out that the small spur gear portion of the 8520 compound gear (Clausing part 990-065 – cost $66) is a close match to McMaster-Carr part no. 6325 K31. Cost $7.79.