Starrett 51309 Spring Caliper with Round Legs 3 Inch

The Starrett 51309 is a precision 3-inch spring-type caliper with round legs, designed for toolmakers and skilled mechanics who demand exceptional accuracy and control. Part of Starrett's renowned 277 Series, this caliper delivers the fine adjustment and superior balance needed for sensitive measurement work.

Key Features:

• Hardened fulcrum stud for long-lasting durability and precision
• Strong and flexible bow spring maintains consistent tension
• Centrally located leg adjustment ensures smooth, controlled operation
• Round legs with solid nut construction for reliable performance
• 3-inch (75mm) capacity for versatile measuring applications
• Precision manufactured to rigid Starrett quality standards

This spring caliper provides the sensitive "feel" required for fine tolerance work, making it an essential tool for precision measurement, layout work, and comparison tasks in tool rooms, machine shops, and quality control environments.