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256MRL-25

There is a newer version of this product available

256.1MRL-25 Disc-Type Micrometer
The Starrett 256.1M 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.

256MRL-25 Disc-Type Micrometer 51238

256, 256M Disc Type Micrometers with Rotating and Non-Rotating Spindle
Disc-Type Micrometer, Ratchet Thimble, 0-25mm Range

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. 0-25mm Range, 0.01 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.

Features
Specifications
Parts
Downloads
3D CAD Files / Exploded Parts Diagram
Product Testimonials
California Prop 65
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
  • Available in the 1" and 25mm sizes with rotating or non-rotating spindle
  • 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

  • Made in America: Yes
  • Micrometer Type: Disc-Type Micrometers with rotating spindle
  • Range (mm): 0-25mm
  • 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

Downloads


    2D Dimensional Drawing (PDF)
    .pdf

     

    121.99 kb

3D CAD Files / Exploded Parts Diagram

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Product Testimonials

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    Parts

    California Proposition 65 Warning

      WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov