PRODUCT DETAILS Click an item to expand and learn more Overview Mill and Lathe Adjustable Tramming & Squaring System (1/2" Shank)1/2" Collet.Measurement Diameter is Fully Adjustable from 3 - 6 in.CNC Machined from 6061 Aluminum with a Protective Anodized Finish.½” Stainless Steel Center pin is 4 in. tall.Backed by SST Lifetime Warranty.Complete set includes two 1 in. Dial Indicators with .0005” gradation with 1" stroke. Reviews Questions and Answers