Electronic Supply by Industrial Electronics in Milwaukee Wisconsin : Potter Brumfield, Radio Shack Stores in Milwaukee: 391 Micrometer Stand Combination 391 Micrometer Stand Combination ================================================================================ Staff on 31/10/2009 01:39:00 A convenient combination, perfect for the workbench. Position your micrometer EXACTLY where you need it! A convenient combination, perfect for the workbench. * Gently, yet firmly, holds micrometers of all sizes. Can also hold small PC boards and other objects * Delrin(tm) pads open 0.5" (12.7mm) and close to 0" for holding thin items * Throat depth: 0.95" (24.1mm) * Single control knob and exclusive "split-ball" lock Head firmly in place * Base accepts all 300 series vise Heads * Base features 4.3125" (109.5mm) bolt circle countersunk for three 1/4" (6.3mm) flat-head screws (not included)