?WIDE APPLICATION? for a holding clamp assembly for use with a T-slot and useful in many woodworking and metalworking applications for work holding, positioning and securing ?HIGH QUALITY? Puts clamping pressure anywhere along the recessed T-slot. ?EASY TO USE? The holding clamp is easy to secure the wood to a drill press table or any work surface. ?SIZE? Size of T-screw and threaded rod: M8; Main Material: Metal ?AFTER-SALES WARRANTY? We care every customer’s feeling. If this product does not meet or exceed your expectations, please contact us first, we will resolve the issue immediately. Package includes: 2pcs T screws + 2pcs knob nut only Features: This is for a set of hold down clamp for use with the T-slot track. These clamps are useful in many woodworking and metalworking applications for holding, positioning and securing work. Very versatile! Also ideal for clamping jigs and fixtures! Puts clamping pressure anywhere along the recessed T-slot T-track. Slides into T-track and