The South Bend SB1072 is a 25-inch, 3-jaw direct-mount metal lathe chuck built for heavy-duty workholding on A2-15 spindle machines. Designed as a self-centering scroll chuck, it delivers strong, accurate clamping for large workpieces in demanding turning applications.
Its cast-iron body and 2-piece hardened jaws provide the rigidity and durability needed for consistent performance, while the direct-mount A2-15 connection helps maintain excellent stability and concentricity. With a maximum speed of 850 RPM, this chuck is suited for serious machining environments where secure grip and precision matter.
This model is intended for machinists and shops using compatible Big Bore lathes that need a large-capacity chuck for inboard or outboard spindle setups. It fits select South Bend Big Bore lathe models including SB1065F, SB1066F, SB1067F, SB1068F, SB1069F, SB1070F, and SB1071F.
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