/ Precision Measuring Tools / Precision Hand Tools / Micrometers / Micrometer Heads / 63MRL * Not actual product image 55939 63MRL Micrometer Head 55939 Other similar products The Starrett 63M Micrometer Head features 0-50mm range, 0.01mm graduation, ratchet stop, and lock nut. 0-50mm, 0.01mm Grad with Ratchet Stop, Lock Nut. Note:This item is discontinued. Please consider the recommended alternative listed above or contact our special order department at (978) 249-3551 x410 for more information. Features Specifications Parts Contact Starrett Features Starrett satin chrome finish – no glare – resists rust on all reading surfaces Advanced sleeve design with staggered lines and distinct figures for precise and easy readability Quick-reading figures Extremely hard and stable one-piece spindle (the heart of our accuracy and long life) Micro-lapped measuring face for flatness and squareness Quick and easy adjustment Specifications Micrometer Type: Mechanical Micrometer Head Range (mm): 0-50mm Graduations (mm): 0.01mm Spindle Material: Steel Lock Nut Type: Ring Type Knurled Spindle Type: Flat Thimble Type: Ratchet Accuracy (mm): +/-.002mm Parts Member of Kit Item #DescriptionPart No.QtyInformation 10STEM, METRIC16469-M1 20SHELL, ADJUSTING METRIC16473-M1 30SHELL, OUTSIDE METRIC16477-M1 40SPINDLE, MICROMETER METRIC16492-M1 50NUT, .375-52PT164141 60SPRING, BARREL10058-01 70WRENCH #301526-01 80BINDER NUT ASSEMBLYPT991741 90•RING, BINDER09980-01 100•SPRING, .089X.107X.062X.009X213207-01 110•PIN, .085X.125X.10809762-01 120RATCHET ASSEMBLYPT198321 130•CAP ASSEMBLYPT994451 140••RATCHET13196-01 150••CAP, RATCHET07671-B1 160•BODY, RATCHET #23019773-01 170•PIN, RATCHET .066D X .156LPT189761 180•SPRING, .041X.061X.188X.010X6PT076731 190•SCREW, #2-64 SLOT X .204 LONGPT197721