AmScope ASC Articulating Arm with Clamp and 76mm Collar Diameter

This is an articulating arm with a focusing rack with 3" diameter, and clamp for stereo microscopes. Great for examining parts attached to a larger or awkward shaped item, this articulating arm stand comes with a clamp that can be secured to ledges up to 2 1/8" (53mm) thick. Features & Specifications : 3" (76mm) Collar Focusing Rack 40" (1020mm) Extension Length 20 lbs (9kg) in Weight A Versatile Articulating Stand with Clamp for Covering Large Working Area Articulating Design for Flexibility Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Factory Warranty Packing List: One Articulating Arm with Clamp One Focusing Rack w/3" diameter (unless otherwise requested by buyer) User's Manual Download