Starrett 436 Mechanical Outside Micrometer Ratchet Thimble 9 To 10 Inches

The Starrett No. 436 mechanical outside micrometer covers 9"–10" with a 0.0001" measurement resolution, enabling precise external dimension readings. It uses a ratchet-style thimble to apply consistent measuring pressure, helping minimize variation due to user force and improve repeatability. Designed for measuring outside dimensions of larger parts, it supports inspection and setup work in machining, fabrication, and quality control where tight external tolerances matter. The 9–10 inch range makes it suitable for checking shafts, sleeves, and other components within this size window, providing reliable, hand-operated measurements without the need for batteries or electronics. Starrett No. 436 is a practical tool for inspectors and machinists requiring accurate, repeatable outside measurements in shop or field settings.