1、You can use the hold down clamp in conjunction with the chute to fix the plate on the operating table. 2、The soft plastic material at the contact area will effectively prevent scratching or damaging the wood. 3、Allows for smooth sliding in the chute, the hold down clamping tool ensures higher cutting efficiency. 4、Simple structure with convenient operation enable strong clamping force and wide application range. 5、The main body is made of aluminium alloy, rustproof and wear‑resistant, very durable for long-term use. 1 x Hold Down Clamp Main Body1 x M8 Plastic Handle1 x M8 T-Type Screw1 x M8 Screw Rod1 x M8 Small Slide Block1 x Stainless Steel Washer Item Type: Hold Down Clamp SetMain Material: Aluminium AlloyThe Thickness of the Fixed Board: Approx. <100mm / 3.9inPlastic Handle Thread Specification: M8mmT-Type Screw Thread Specification: M8mmScrew Rod Thread Specification: M8mmSmall Slide Block Thread Specification: M8mmFunction: Used in conjunction with the chute to fix the plate on the operating table.