RATTMMOTOR High-Precision DIY Engraving Machine Mold Mini Right Angle Vise Clamp Working Range 50mm for DIY Mini CNC Router Milling Engraving Machine

Broke instantly. Don’t buy.

The one that I got is very strongly built and with smooth finish, possibly made of aluminum. Very minimal up-push when tightened if not none. Bushings for lead screw is welcome and is very smooth. Overall a good little tool to have when working with small projects. Definitely recommended. If you are really picky, then the provided T-nuts and 4mm screws for securing the clamp are too small bearing in mind that the holes are 5mm dia. holes.

Very happy with it but don't expect it to handle heavy work. Its useful for pressing small gears onto shafts related to my hobby