469 Large, Super-Precision Micrometer Heads 0-1"/0-25MM These are our most accurate micrometer heads.They are also available on special order with double graduations in red and black on the sleeve and thimble, permitting readings both ways with the spindle moving in either direction. These micrometer heads have a 4-1/16" (103mm) thimble diameter and are graduated to .0001", .000050", 0.001mm, or 0.002mm for direct reading. They also have staggered graduations for easy counting and reading of lines. Spindle is carbide faced for long life. Micrometer Heads 469 Large, Super-Precision Micrometer Heads (0-1" Range) Cat. No. EDP Graduation T469HXSP 67129 .000050" T469XSP 67130 .0001" 469M Large, Super-Precision Micrometer Heads (0-25mm Range) Cat. No. EDP Graduation 469MHXSP* 67131 0.001mm 469MXSP* 67132 0.002mm *Metric models specify clamping diameter 25 or 25.4mm. 25.4mm sent unless otherwise ordered. Also available on special order with double graduations for reading both ways with spindle moving in either direction. ( ) 5-1/2" (140) 2-19/32 (66) 1-7/16" (36) 7/8" (22) 4-1/16" (103) 5/8" (16) 19/32" (15) .500" (12.70) .999" 1.000" .312" (7.92) 25.000 25.400 (+.000) (-.007) 469 (0-1") and 469M (0-25mm) dimensions T469HXSP 72 M icrometers