Starrett 50343 73B-12 Inside Caliper 12-Inch Range Precision Measuring Tool

The Starrett 73B-12 is a professional-grade inside caliper designed for precise internal measurement up to 12 inches. Built to the exacting standards Starrett has maintained for over a century, this tool delivers reliable accuracy for machinists, toolmakers, and quality control professionals working with bores, holes, and internal dimensions.

Key Features:

• 12-inch (300mm) measuring range for versatile inside measurement applications
• Hardened and ground contact points for long-lasting accuracy and wear resistance
• Smooth, precise adjustment nut allows fine-tuning for exact measurements
• Spring-tempered legs maintain consistent tension and snap-back action
• Knurled adjusting nut for secure, slip-free setting
• Manufactured from high-quality hardened steel for durability in shop environments

The Starrett 73B series inside calipers are a staple in professional machine shops and inspection environments. Once set to the desired dimension, the caliper transfers measurements accurately to a micrometer or rule for reading. Starrett part number 50343 corresponds to the 73B-12 model in the 73B series spring-type inside caliper line.