55943

256MRL-75 Disc-Type Micrometer 55943

The Starrett 256M Disc-Type Micrometer is used to measure the thickness of work sections such as ribs, lands, fins, cutting edges on form tools, and chordal thickness of gear teeth. Because of their large anvil and spindle faces, the 1" and 25mm sizes are also useful for measuring the thickness of sheet materials like paper, cardboard, rubber, and plastics. 0-75mm Range, 0.01mm Grad, 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.

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.


Contact Starrett

Features

  • Advanced sleeve design with staggered lines and distinct figures for precise and easy readability
  • Quick-reading figures - every thousandth numbered on inch tools
  • Balanced frame and thimble design ensure easy handling and better readability
  • Quick and easy adjustment
  • Starrett satin chrome finish - no glare - resists rust
  • Ring-type knurled lock nut for quick and sure locking
  • The combination ratchet and speeder for uniform pressure and quicker adjustment on all sizes
  • Gracefully designed tapered frame for use in narrow slots and tight places
  • Anvil and spindle discs are 1/2" (12.7mm) diameter tapering to .015" (0.4mm) edge thickness making it possible to enter narrow grooves and recesses
  • Rigid one-piece frame of drop forged steel
  • Extremely hard and stable one-piece spindle
  • Micro-lapped measuring faces
  • This tool is accurate to .00015" or 0.003mm measuring over the whole surface and .0002" or 0.004mm measuring on the edges

Specifications

  • Micrometer Type: Disc-Type Micrometers with rotating spindle
  • Range (mm): 0-75mm
  • Graduations (mm): 0.01mm
  • Anvil/Spindle Material: Steel
  • Anvil Type: Flat Disk
  • Spindle Type: Flat Disk
  • Lock Nut Type: Knurled Ring Type
  • Thimble Type: Ratchet

Parts

    Member of Kit
    Item #DescriptionPart No.QtyInformation
    1FRAME SUB ASSEMBLYNOT AVAILABLE1
    2NUT, .375-52PT164141
    3SHELL, ADJ. METRIC13331-01
    4SPINDLE, METRIC13694-M1
    5SHELL, OUTSIDE METRIC09993-M1
    6NAMEPLATE #256M27125-01
    7ANVIL, FRAME #25618528-01
    8LOCK NUT, #436PT990701
    9•RING, BINDER05323-01
    10•ROLL, BINDERPT053251
    11•RING, FRICTION05662-01
    12SPRING, BARREL01525-01
    13RATCHET ASSEMBLYPT198321
    14•CAP ASSEMBLYPT994451
    15••RATCHET13196-01
    16••CAP, RATCHET07671-B1
    17•BODY, RATCHET #23019773-01
    18•PIN, RATCHET .066D X .156LPT189761
    19•SPRING, .037X.061X.188X.011X603324-01
    20•SCREW, #2-64 SLOT X .204 LONGPT197721
    21WRENCH #3PT015261

Downloads


    2D Dimensional Drawing (PDF)

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