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The thread pitch is spot on for the cross-slide, and the hardened surface feels like it'll hold up better than the original part. Took a couple minutes to seat properly, but once it was in, the backlash was noticeably tighter.

Fit perfectly on my Sieg SC4 lathe and the machining is precise, no slop in the mounting slot. The finish is clean with sharp edges, exactly what I needed for my tool post upgrade.

Installed this replacement post on my drill press and the fit was exact—no filing or adjustments needed. The machining is clean and it holds bits securely without any wobble.