Starrett 56646 Comparator Gage Stand Granite Base 14in

Product Description

The STARRETT 56646 is a granite-base comparator gage stand designed for precision measurement setups in machine shops, quality control labs, and tool rooms. Built from solid granite, the base provides a stable, vibration-dampening foundation that resists thermal expansion and surface wear. The stand reaches 14 inches in overall height, with a 9-1/4 inch post height and a rectangular base measuring 12 inches long by 8 inches wide by 2 inches high. A fine vertical adjustment mechanism allows the indicator holder to be positioned precisely and locked in place, ensuring repeatable readings across inspection cycles. A holder is included. No anvil or dial indicator is included.

This comparator gage stand is suited for use in metrology rooms, inspection benches, and production-floor measurement stations where a rigid, flat-surface reference is required. The rectangular granite base integrates cleanly with surface plates and granite bench setups commonly found in precision inspection environments. Machinists and quality technicians handling part inspection, comparative measurement, and incoming goods verification will find this stand appropriate for stationary dial indicator and test indicator setups.

Key Features

• Solid granite construction resists wear, corrosion, and thermal distortion
• Fine vertical adjustment with positive lock for repeatable indicator positioning
• Rectangular base at 12 inches x 8 inches x 2 inches provides a wide, stable footprint
• 14 inches overall height accommodates a broad range of workpiece heights
• Includes indicator holder — no additional mounting hardware required for initial setup
• Does not include anvil or dial indicator, allowing use with preferred measurement instruments

Compatibility

Designed as an OEM-style granite base stand for comparator gage applications; consult STARRETT documentation for compatible dial indicators and holder accessories.

Installation Notes

Installation is handled by quality technicians and metrologists — no power tools or electrical shutoff is required. Position the stand on a clean, level surface plate or bench surface free of chips and debris before mounting an indicator. Secure the holder at the desired height using the fine adjustment and locking mechanism before taking readings. Do not drag the granite base across abrasive surfaces, as granite edges can chip under lateral impact.