Clamping, workholding, and positioning products hold workpieces in place and adjust machine components in machining operations. Hand knobs provide a simple clamp to hold workpieces. Hand wheels turn to position tables, carriages, and cutters. Indexing and positioning equipment is used to set up workpieces for layout, inspection, and machining. Lathe centers keep workpieces centered between a lathe's headstock and tailstock. Lathe chucks and jaws hold workpieces onto lathes. Machine clamping products position and hold workpieces on machine worktables. Machine handles mount to machine tools to allow manual adjustments of settings. Machine vises have wide jaws with a large surface area for positioning and securing workpieces. Milling machine T-slot nuts and bolts fasten workpieces to T-slot grooves in milling machines and positioning tables. Locating and positioning feet, grippers, and components aid in positioning and holding workpieces in machining and automation applications.