Bison Cast Iron Scroll Chuck - 6 Jaw - 1 Piece Jaw (Rear Mount) - 315mm

The Bison 3804 series rear-mount, 6-jaw cast iron scroll chuck is built for dependable, uniform workholding on round and symmetrical parts. Ideal for machine shops, fabrication settings, and hobbyists who need repeatable clamping with minimal deflection, it delivers steady performance across a range of projects.

Ground working surfaces help maintain true alignment and reduce workpiece marring during clamping. Supplied with a wrench and two jaw sets—one reversible hard jaw set and one outside hard jaw set—so you’re ready to tackle diverse parts from the start. All chucks are 100% manufactured in the Bison Bial factory in Poland, a mark of durable quality and long tool life.

• Rear-mount design for rigidity and accuracy: This mounting style provides solid support and minimizes deflection, delivering a stable, concentric grip on larger or precision parts.
• Two jaw sets included for versatile, durable clamping: Comes with a reversible hard jaw set and an outside hard jaw set plus a wrench, enabling fast setup and extended jaw life for a variety of part geometries.
• Ground working surfaces for consistent runout: Ground contact surfaces enhance alignment accuracy and reduce surface damage, improving repeatability across multiple parts.

Designed for dependable performance, this 315 mm six-jaw chuck delivers repeatable gripping and durable construction for demanding turning applications. The cast iron body provides good vibration damping, while the Polish-made manufacturing ensures consistent quality and long tool life you can rely on project after project.