Bison Cast Iron Scroll Chuck - 4 Jaw - 1 Piece Jaw (Rear Mount) - 315mm

The Bison 3604 series rear-mount 4‑jaw cast iron scroll chuck is a robust workholding solution for lathes, sized at 315mm to handle a wide range of stock with confidence. It’s ideal for engineers, machinists, tradespeople, hobbyists, and busy workshops that demand secure, precise gripping and repeatable results in turning and facing operations.

Built with ground working surfaces, this chuck provides true running and consistent clamping across setups. It’s supplied with a wrench and a complete jaw kit: 1-piece jaws plus a set of reversible hard jaws and a set of outside hard jaws, giving you flexible gripping options for different workpieces. All Bison scroll chucks are 100% made in the Bison Bial factory in Poland, renowned for exceptional quality and long tool life.

• Ground precision surfaces for repeatable accuracy: Ensures true running and consistent grip across multiple setups, reducing runout and delivering reliable part finishes.
• Complete jaw system for versatility: Includes 1-piece jaws with reversible hard jaws and outside hard jaws, plus a wrench—ready to tackle a wide range of stock and grips.
• Rear-mount cast iron construction for durability: Delivers stiff, stable clamping and long service life, supporting consistent performance in demanding turning jobs.

This chuck simplifies setup, enhances holding power, and supports high-quality results across a variety of turning tasks. Its rigid rear-mount design and high-quality Polish manufacturing give you the confidence to work quickly and accurately, even with challenging or irregular workpieces.