Starrett Hub Micrometers
No. 228 (0 - 1")
No. 228M (0 - 25 mm)
The Starrett No. 228 Micrometer is an ideal tool for precision measuring of hub thickness, for insertion through small holes to measure thickness, and for many other related uses. This micrometer has a specially designed
shallow frame which makes it possible to easily pass through a 3/4" (19 mm) hole.
Readability Features
- Starrett satin chrome finish - no glare- resists rust
- Advanced sleeve design with staggered lines and distinct figures for precise and easy readability
- Quick-reading figures - every thousandth numbered on Inch tools
Ease-of Handling Features
- Starrett balanced frame and thimble design insure easy handling and better readability
- Ring-type knurled lock nut for quick and sure locking
- Combination ratchet and speeder for uniform pressure and quicker adjustment
Accuracy and Long-Life Features
- Rigid one-piece frame of drop forged steel
- Extremely hard and stable one-piece spindle (the heart of our accuracy)
- Micro-lapped measuring faces
- Quick and easy adjustment
- Starrett workmanship
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