Product Name: Wire Twisting Machine Size 9: Diameter 21mm, length 82mm, handle length 25mm, handle diameter 9mm Size 11: Diameter 20.5mm, length 76mm, handle length 25mm, handle diameter 9mm Improving work efficiency: The No. 9 and No. 11 screw sleeves used for chain fences have significantly reduced the time required to fix metal buckles on the chain fences. The time needed to safely and efficiently fix easy buckles is only one-third of the original. High-quality materials: The winding device is made of high-strength alloy and manufactured by integrated molding technology. Sturdy, compact, lightweight and rust-proof, it ensures that the strict requirements for guardrail installation can be met. Easy installation: The wire knower is quick and direct to install. Just insert the tool handle into the drill slot, and it will be firmly and safely installed within seconds. Universal compatibility: The knotting machine is any standard electric drill and is easy to operate. This drill chuck tool is suitable for various projects, not just fence installation. It can be used for construction and wiring installation, providing a universal solution for ALL your wire twisting needs.