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The spring tension feels exactly right for my mini lathe, and the fit was spot-on with no extra shimming needed. It's holding the tool rest firmly in place like new again.

Finally got my lathe back in action after swapping this in — the fit is exactly right for the Sieg-style cross slide assembly. The spring tension feels solid and consistent through the full rotation.

The torsion spring on this retainer has just the right amount of tension—snaps into place without feeling flimsy. Took me under a minute to swap out on the mill, and it’s held solid through a few hours of use since.