Open Frame Piano Hammer Jig Adjustable Hammer Punching Fixture Transparent Cover Bench-Style Clamp Jig Measuring Scale for Instrument Repairers

This metal shop equipment is an open-frame hammer punching fixture with a silver finish, flat base, and transparent top cover section for stable bench use. Built as a hammer punching fixture, it holds a hammer head or similar small part in position during punching or drilling work for more controlled handling. The piano hammer jig includes a side adjustment knob and front T-handle clamp, helping secure the part and fine-tune placement before work begins. Measuring scale markings on the body add a practical reference for alignment, making this bench-style clamp jig easier to position with consistency. Designed for instrument repair tasks, this bench-style clamp jig helps keep small components steady so the user can focus on accurate, detailed work.