465, 468 Direct-Reading, Large Micrometer Heads 0-2"/0-50MM These large micrometer heads are designed for use with electronic equipment requiring ultra-fine adjustment for machine tools, fixtures, special gages and tools, special mountings, or wherever micrometer accuracy in setting and adjustment is required. Another highly useful feature is the spindle adjustment, which permits adjusting the spindle length approximately ±1/16" (1.5mm). If the spindle is to be located against a definite stop and a different zero position is required, first loosen the cap screw in the end of the thimble, position the spindle to the desired location, then holding the spindle in position, rotate the thimble to zero and retighten the cap screw. In achieving this adjustable feature, we have still retained our positive taper-lock large thimble bearing. The 468 Micrometer heads are exactly the same as the 465, except that they have double figures in red and black on the sleeve and thimble,permitting reading both ways with the spindle moving in either direction.This feature is invaluable on many instruments and microwave applications. T465XSP-1 T468XSP-1 with double figures in red and black on sleeve and thimble for reading both ways. Readability, Accuracy and Long-Life Fea tures • 2-1/16" (52mm) thimble diameter with widely spaced .0001" or 0.002mm graduations for direct reading • All graduations are direct reading – no vernier lines to match • All reading surfaces have Starrett satin chrome finish as the no-glare background for the sharp lines and figures • All graduations on sleeves and thimbles have advanced styling with staggered graduations for easy reading • The spindle is carbide faced for long life • Thimbleandsleevearemadeofaluminumtoreduceweight • Furnished with a speeder (not a ratchet) for quicker adjustment • Extremely hard and stable one-piece spindle for accuracy and long-life • Micro-lapped measuring face for flatness and squareness • Quick and easy adjustment Micrometer Heads 465 Mircometer Heads Cat. No. EDP Range Graduation T465XSP-1 67121 0-1" .0001" T465XSP-2 67122 0-2" 465MXSP-25* 67123 0-25mm 0.002mm 465MXSP-50* 67124 0-50mm 468 Micrometer Heads Cat. No. EDP Range Graduation T468XSP-1 67125 0-1" .0001" T468XSP-2 67126 0-2" 468MXSP-25* 67127 0-25mm 0.002mm 468MXSP-50* 67128 0-50mm *Metric models specify clamping diameter 25 or 25.4mm. 25.4mm sent unless otherwise ordered. ( ) 5-1/8" (131) 19/32" (15) .560" (14.22) 5/8" (16) .500" (12.70) .999" 1.000" .312" (7.93) 2-9/16" (65) 2-1/16" (52) 1-7/16" (36) 25.000 25.400 (+.000) (-.007) 465, 468 Models (0-1"/0-25mm) dimensions 7-1/8" (182) ( ) 9/32" (15) .500" (12.70) .999" 1.000" .312" (7.93) .560" (14.22) 2-7/16" (61) 3-9/16" (90) 2-1/16" (52) 5/8" (16) 25.000 25.400 (+.000) (-.007) 465, 468 Models (0-2"/0-50mm) dimensions 71 starrett.com M icrometers