Secure a workpiece from the inside, leaving the outside clear for machining.

Tighten the spring-loaded socket head cap screw on these clamps to hold your workpiece from above.

Screw these clamps directly into a tapped hole in a fixture.

Machine these fixture clamps to match the contours of your workpiece for a stronger grip.

Set one of these clamps between two workpieces in a fixture and tighten the screw to push the clamp's sides out for a secure hold.

Machine these fixture clamps to match the contours of your workpieces for a stronger grip. Place the clamp between the two workpieces in a fixture and tighten the screw to extend the sides of the clamp, creating a secure hold against both workpieces.