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256MRL-50 Starrett Disc-Type Micrometer with Rotating Spindle: 25-50mm
The Starrett 256MRL-50 Disc Micrometer has the following specifications:
Accuracy over the While Surface: +/- .003mm
Accuracy when measuring on the edges: +/- .004mm
Lock Nut Type: Knurled Ring Type
Thimble Type: Ratchet
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 25mm sizes are also useful for measuring the thickness of sheet materials like paper, cardboard, rubber, and plastics.
Advanced sleeve design with staggered lines and distinct figures for precise and easy readability
Quick-reading figures – every thousandth numbered on inch tools
Convenient decimal equivalents
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