Starrett 68041 Outside Micrometer Set 0-4 in 4 Pc

Product Description

The STARRETT 68041 is a 4-piece mechanical outside micrometer set covering a measurement range of 0 to 4 inches in 1-inch increments. Each micrometer features a ratchet stop thimble for consistent, repeatable measuring pressure and solid carbide measuring faces for long-term wear resistance. The satin chrome finish reduces glare during use. This set is suited for dimensional inspection, quality control, and precision machining applications where accurate outside diameter and thickness measurements are required. Machinists, toolmakers, and metrology technicians are the primary users of this instrument class.

This set covers four measurement ranges — 0 to 1 inch, 1 to 2 inches, 2 to 3 inches, and 3 to 4 inches — making it practical for shops that work across a variety of workpiece sizes without switching between individual instruments. It is well matched to production floor use, tool rooms, and inspection stations in both job shop and manufacturing environments. The included case keeps all four micrometers organized and protected during storage and transport.

Key Features

• 4-piece set covers 0 to 4 inches in 1-inch incremental ranges
• Ratchet stop thimble delivers consistent measuring pressure for repeatable readings
• Solid carbide measuring faces resist wear on hardened and abrasive workpieces
• Satin chrome finish minimizes glare under shop lighting
• Includes a protective carrying case for all four micrometers
• Non-rotating spindle design prevents workpiece marking during measurement

Compatibility

Designed as a general-purpose outside micrometer set for measuring external dimensions on round, flat, and irregular workpieces within the 0 to 4 inch range. Starrett catalog reference number ST436.1BXRLZ.

Installation Notes

Outside micrometers require no installation but should be calibrated against a known standard before first use and periodically during service. Store instruments in the provided case away from temperature extremes and contaminants that could affect calibration. Clean measuring faces with a lint-free cloth before and after use. Do not overtighten the thimble — use the ratchet stop to apply proper measuring pressure consistently.