Bison Steel Scroll Chuck - 6 Jaw - 1 Piece Jaw (Front Mount) - 400mm

The Bison 3864 series rear-mount, 6 jaw steel scroll chuck is built for demanding turning tasks on large-diameter workpieces. This 400mm chuck delivers secure, uniform gripping with long tool life, making it a dependable choice for engineers, machinists, and shop floors that require consistent results.

With ground working surfaces, it helps prevent damage and deflection while delivering a uniform bite across the workpiece. Supplied with a wrench and 1 piece jaws: 1 set of reversable hard jaws and 1 set of outside hard jaws. All Bison scroll chucks are 100% made in the Bison Bial factory in Poland and are renowned for offering exceptional quality and tool life.

• Six-jaw, positive gripping: Provides true-running hold with even distribution of pressure, reducing runout and ensuring consistent clamping for large-diameter parts.
• Ground working surfaces: Protects components from damage and deflection while promoting uniform grip and longer jaw life.
• Ready-to-use with included jaw set: Comes with a wrench and a complete jaw kit (reversable hard jaws and outside hard jaws) for immediate setup and versatile handling of different part shapes.

This chuck helps you hold large parts securely, reduce setup time, and achieve repeatable, high-quality results in every turning operation. The 3864 rear-mount design combines robust construction with precise jaw alignment, delivering consistent performance under demanding workloads and a long service life thanks to Polish manufacturing standards.