Which clamp is designed for irregular shapes and can hold workpieces at unusual angles?

• A. Hand screw clamp
• B. C-clamp
• C. Bar clamp
• D. Spring clamp

Answer: (A)

When clamping irregular shapes or holding work at unusual angles, you want a clamp that can follow the contour of the piece and apply even, adjustable pressure. A hand screw clamp does exactly that: it has two wooden jaws that move independently on a screw, so you can position the jaws around complex shapes and tighten from the direction that fits the piece. The wooden jaws grip softly without marring, and the screw lets you apply precise pressure as needed, even at odd angles.

Other clamps are more specialized for straight, uniform work: C-clamps have a fixed jaw and throat that limit angle options; bar clamps are great for long, straight glue-ups but are less flexible for irregular shapes; spring clamps are quick and handy but small and rigid, not suited for unusual angles or heavy, precise pressure.