قاع حامل مركب، ماكنة مخططة صغرى، 20 TPI

Replacing the worn bottom half on my lathe was straightforward, and the 20 TPI thread engagement feels precise when advancing the compound. The 0.050" per revolution is exactly what I needed for fine adjustments, and it’s holding up well so far.

Installed this on my mini lathe and it was a perfect fit—the 0.050" per revolution advance makes dialing in cuts much easier. Solid machining with no wobble.

The 20 TPI thread cut cleanly with no burrs, and the base seated flush against the carriage without any shimming. It’s a solid, precise replacement part that’s been holding up well through a few dozen hours of turning.