Powertec 71863 T-Track Hold Down Clamp Set, 5-1/2" L X 1-1/8" W And 3-5/8", 4 Pk Introducing the Universal Hold Down Clamp by POWERTEC POWERTEC 71389 This hold down clamp set provides you with a heavy duty and reliable solution to keeping your t-track/ t-slot work pieces in place. Each clamp is designed to fit firmly in your universal t-track/ slot assembly, providing you with high-tension clamping action. Premium Build + Innovative Design Featuring our unique lever shaped profile, these woodworking accessories deliver exceptional hold-down clamping action. DESIGN: Made from premium grade anodized aluminum with a lever shaped profile ensuring optimal leverage in addition to work piece accessibility FEATURES: Ergonomically designed 5 star knobs, non-marring clamping pads, and a high tension clamping capacity INCLUDES: (2) Mini Hold Down Clamps for T-tracks/T-slots; (2) 5/16-Inch-18 thread 3-1/2-Inch long T bolts; (2) Washers; (2) 5/16-Inch-18 thread 5-star knobs (2) Hold Down Clamps for T-tracks/T-slots; (2) 5/16-Inch-18 thread 3-1/2-Inch long T bolts; (2) Washers; (2) 5/16-Inch-18 thread 5-star knobs FUNCTION: Provides exceptional clamping action for your universal t-track system configurations and assemblies FEATURES: Ergonomically designed 5 star knobs, non-marring clamping pads, and a high tension clamping capacity DESIGN: Made from premium grade anodized aluminum with a lever shaped profile ensuring optimal leverage in addition to work piece accessibility VERSATILITY: Hold Down Clamp Set is ideal for work holding, positioning, and fixturing for many woodworking or metalworking applications, including routers, drill presses, CNC, table saws, jigs, panels, vertical mills and more