Ring Stretcher Tool, 16 Rollers & Wood Box to Resize & Enlarge Stone Set Jewelry Wax Modeling Tools and Accessories It has a focal length

It has a focal length of 8" (203 mm)

It has a 3/32" shank

This is a new 60X-100x illuminated microscope

Two new black velvet bracelet pads

Ring Stretcher Tool, 16 Rollers & Wood Box to Resize & Enlarge Stone Set Jewelry Wax Modeling Tools and Accessories It has a focal lengthRing Stretcher For Resizing Rings. This is a ring stretcher. This precision machined device provides an easy way of stretching stone set rings without loosening prongs or stressing stone settings. This ring stretcher comes with an assortment of 16 rollers which will accommodate most ring styles. Highly polished and hardened rollers eliminate the necessity of repolishing ring shanks after use. The smallest ring size this will work with is a size 5.