Starrett 68074 Outside Micrometer Set 6 Piece

Product Description

The STARRETT 68074 is a 6-piece mechanical outside micrometer set covering a measurement range of 0 to 150 mm in 25 mm increments. Each micrometer features a ratchet stop thimble for consistent, repeatable measuring force and solid carbide measuring faces for long service life in shop environments. The satin chrome finish reduces glare under work lighting. This set is used by machinists, tool-and-die makers, quality control technicians, and precision fabricators who require traceable dimensional measurement across a broad range of workpiece sizes. All six micrometers ship together in an included case for organized storage and transport.

This set is suited to production and inspection work where multiple measurement ranges are needed without switching individual instruments. The 25 mm incremental range coverage — 0 to 25 mm, 25 to 50 mm, 50 to 75 mm, 75 to 100 mm, 100 to 125 mm, and 125 to 150 mm — makes it practical for general machining, toolroom work, and incoming material inspection. The 0.01 mm graduation supports dimensional checks where metric tolerance calls are standard.

Key Features

• 6-piece set covers 0 to 150 mm in 25 mm incremental ranges
• 0.01 mm graduation for precise metric measurement
• Ratchet stop thimble ensures consistent measuring force across users
• Solid carbide measuring faces resist wear on hardened workpieces
• Satin chrome finish minimizes glare in bright shop lighting
• Includes fitted case for storage and transport of all six instruments

Compatibility

Designed as a general-purpose outside micrometer set for metric dimensional measurement in toolroom, production, and quality inspection applications. Starrett Number S436.1MCXRLZ is the manufacturer reference for this set.

Installation Notes

Outside micrometers require no installation but should be calibrated before use with the appropriate gauge blocks or standards. Clean measuring faces with a lint-free cloth before and after use to prevent contamination from affecting readings. Store micrometers in the provided case away from temperature extremes to maintain calibration stability. Periodic recalibration should follow shop metrology procedures or ANSI/ASME B89 guidelines.