L.S. Starrett 436.1 Series Outside Micrometers

• Ring-type knurled lock nut for quick and sure locking
• Smooth friction thimble for uniform pressure or the combination ratchet and speeder for uniform pressure and quicker adjustment, or a plain micrometer
• Gracefully designed tapered frame for use in narrow slots and tight places
• Rigid one-piece steel frame ribbed for extra strength
• Micro-lapped measuring faces