463 Micrometer Heads 0-1/2"/0-13MM 1463 St ainless Steel Micrometer Heads 0-1/2"/0-13MM The 463 and 1463 Micrometer head are exactly the same, except that the 1463 is made from rust-resistant stainless steel. The reading surfaces are satin finished stainless steel for easy readability. Heads are available with the features below: • Either combination ratchet and speeder for uniform pressure and quicker adjustment, or plain micrometer heads that depend on your own feel • Ring-type lock nut for quick and sure locking at any setting • Reverse reading, if needed • Plain or carbide spindle faces Micrometer Heads 463 and 1463 Micrometer Heads Cat. No. EDP Range Graduation 463P 52440 0-1/2" .001" 463P-38TN 67112 463L 52442 463XL 52451 463L-38TN 67113 463RL 52443 463XRL 64687 RV463RL 57073 RV463XRL 64688 T463P 52446 0-1/2" .0001" T463L 52448 T463XL 64689 T463RL 52449 T463XRL 65052 463MP 52444 0-13mm 0.01mm 463MRL 52452 463MXRL 64691 V463MRL 65053 0-13mm 0.002mm RV463MRL 60845 1463RL 53207 0-1/2" .001" T1463RL 53209 .0001" V1463MRL 64344 0-13mm 0.002mm 2-13/16" (71.49) 1-43/64" (42.58) 23/64" (9.08) 39/64" (15.61) 17/32" (13.49) 17/32" (13.49) .2002" (5.08) .3750" .3745" 25/32" (19.82) ( ) 9.525 9.512 463L-38TN (0-1/2") dimensions 2-5/8" (66.7) 3/8" (9.5) 9/16" (14) 3/4" (19.0) .3749" .3744" .200" (5.08) 9.523 9.510 ( ) 463P (0-1/2") and 463MP (0-13mm) dimensions 3-3/8" (85.7) 1-21/32" (42) 3/8" (9.5) 3/4" (19.0) 3/8" (9.5) 9/16" (14) .3749" .3744" 9.523 9.510 .200" (5.08) ( ) 463RL (0-1/2") and 463MRL (0-13mm) dimensions 463RL 67 starrett.com M icrometers