Premium Material: Our T-slot pliers are made of premium alloy and the surface is treated with oxide coating which has certain wear resistance, corrosion resistance and rust resistance and is durable . Function: Our T-slot clamp is a sliding T-shaped rail stopper, a position limiting device for woodworkers and a fixed gripping tool for woodworking clamps. Easy to use, strong tension and wide range of applications. Wide range of applications: Our T-slot clamps are used in many areas of woodworking and metalworking for mounting and positioning of workpieces and are a treat for woodworkers. Spring Nut: Our T-Slot Clamps use a spring nut to hold the T-Clamps, Spring Snap Clamps have a stronger retention, and the knee lever clamps also feature cylindrical support bars. Note: We have excellent customer service. If you have any questions, please feel free to contact us, we will resolve as soon as possible. Size: as shown Blue color Quantity delivered: 1 piece Note: 1. please allow 1-3cm error