Air-powered swing and toggle clamps use compressed air rather than mechanical force to apply clamping pressure to hold workpieces in place. They're often used in production environments to provide quick parts change outs and repeatable machining. Hold-down toggle clamps press the workpiece to the fixture against the fixture or table. Straight-line toggle clamps apply side clamping force to press the workpiece against a stop to quickly change out parts in production environments. Swing clamps clamp parts from the top and automatically swing out of the way when parts need to be changed out. Lever clamps pivot upward to move out of the way when moving workpieces under the clamp. They're often used in applications with low clearance. Air-powered swing and toggle clamp parts replace worn or damaged parts to keep clamps in good working order.