The Jbm Jbm-53524 set includes tools for breaking nuts. The bolt tightens the tool and, with a few turns of a wrench, the hardened steel chisel cuts through the nut. It is used to remove rusty or damaged nuts without damaging the bolt threads.
- Nut sizes: 9–12 mm, 12–16 mm, 16–22 mm, 22–27 mm
- Chisel material: Hardened steel
- Replacement parts: Available