/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / Edge & Center Finders / PT28314 * Not actual product image 68846 PT28314 Edge Finder 68846 Other similar products Auxilliary Circular Carbide Scriber Collet Adapter for Cat. 827 need for collet changes on Bridgeports and similar machines. It can also be used with any other attachment with a 3/8" post. The progressive steps are: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4" and 1". Step depths vary from .100" to .200". Downloads Contact Starrett Downloads Catalog 33 - Section 17 - Precision Shop Tools This section offers quality tools that do not measure, but are needed frequently in manufacturing. Tools such as work positioning tools, scribers, punches, vises and lubricant are an integral part of any shop or manufacturing industry. Precision Hand Tools (Catalog 33) 612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock.