1) 5C spin index fixtures: a) Hardened and precision ground spindle b) 0.0004" T.I.R spindle accuracy c) Super time saver d) Applicable to all milling machines, surface grinders and inspection equipment e) Precision ground 36 position index plate f) Direct indexing in ten steps, graduated in 5 degree increments g) Model no.: 235-6011 2) 5C collet index fixtures: a) Threaded spindle is hardened and ground (2-1/4"-8TPI) b) Single lever action activates the indexing mechanism c) Precision ground index plate has 24 indexing locations in fifteen degree d) 15-degree increments, any of which can be masked for greater versatility 3) Horizontal/vertical indexing fixtures: a) Designed for milling, drilling, jig boring, and many other shop applications b) Hardened and ground 24-position index plate (15-degree increments) c) 360-degree satin chrome grauated ring with 5 minute adjustable vernier plate ensures accurate readings d) Fast and simple indexing of 2, 3, 4, 6, 8, 12 and 24 divisions e) Model no. 200-2006 F2, chuck size 6", thru hole dia. 1-23/32 f) Model no. 200-2008 F2, chuck size 8", thru hole dia. 2-15/32