Plain Diameter Gaging · ISO/IEC 17025 · Made in USA
Plain Plug Gages
Taperlock, Trilock, Reversible, and Progressive Plug Gages in Steel, Chrome, and Carbide
Fixed-limit cylindrical plug gages for internal-diameter inspection — class XX through Z, in steel, hard chrome, and carbide, to ANSI/ASME B89.1.5.
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ISO 9001Certified Quality Management
ANSI/NCSL Z540-1Accredited Calibration Lab
Made in USASince 1989
Plain plug gages check the size of a hole — GO/NO GO, no threads — and are the workhorse of dimensional inspection. WESTport builds every mounting style and material so the gage matches the tolerance, wear, and handling the job demands.
- Taperlock and Trilock mounts for standard and larger diameters.
- Reversible gages — two members in one handle.
- Progressive gages combining GO and NO GO on a single member.
- Steel, hard chrome, and carbide for wear resistance where it counts.
Class XX, X, Y, Z, and ZZ tolerances, to ANSI/ASME B89.1.5, certified in our ISO/IEC 17025 laboratory.