Important: Lead time on this item is currently about 3 weeks. Please contact us for up-to-date info. Features: Easy, fast & accurate positioning. Holds up to 11lbs (5 kilograms), with a radius of 15.7 Inches (400 mm). One knob allows for simultaneous tightening / releasing of all 3 joints. Uses a maintenance-free, mechanical central tightening system. Quick, stepless lock. High-quality chrome plated alloy. Swiss made. ROHS and REACH compliant. Dimensions (mm) [see 2nd picture]: L=392 L1=196 D1=12 L2=196 D2=12 Threads [see 2nd picture]: M1=M8 M2=M8 Clamp 1 Info: Model: KT2 Max Clamp Opening (mm): 50 Thread: M8 Material: Steel Clamp 2 Info: Model: KT3 Max Clamp Opening (mm): 75 Thread: M8 Material: Steel The Fisso articulated workpiece positioning arm has a 15.7" Radius and can hold parts or components up to 11lbs. It includes the clamps for the head and the base. To operate, simply clamp the base to your work piece or workbench, then clamp the head to the work piece. Next, position everything as you'd like it and twist the knob on the side of the arm. All 3 joints will go rigid and not move until you twist the knob back the other way. Included In this Kit: 1.430 - Fisso Classic 4300-40 Chrome Articulated Arm 5.150 - Fisso KT2 Clamp 5.160 - Fisso KT3 Clamp Still have questions? You can contact us, or take a look at the Fisso Resource Center.