The Insize Inside Spring Calipers 30–300mm 7261-300 is a high-precision measuring tool designed for accurate internal measurement of large hole diameters, slot widths, and internal clearances. Crafted from premium hardened steel, this caliper ensures superior durability, smooth operation, and long-lasting performance in demanding workshop and industrial environments.
Featuring a spring-loaded mechanism with a fine adjustment screw, it allows precise control and consistent tension, ensuring repeatable and accurate measurements. With a wide measuring range of 30mm to 300mm, this tool is ideal for handling larger internal measurement applications with ease.
The Insize 7261-300 Inside Spring Calipers are perfect for machinists, engineers, fabricators, and technicians who require reliable internal measuring tools for professional use.
🔧 Key Features
- Measuring range: 30–300mm
- Spring-loaded design with fine adjustment screw
- Precision internal measuring calipers
- High-quality hardened steel construction
- Smooth operation with stable tension
- Durable and wear-resistant design
- Suitable for professional and industrial use
⚙️ Applications
- Internal diameter measurement
- Hole and slot width checking
- Machining and fabrication work
- Engineering inspection
- Workshop measurement tasks
- Industrial maintenance












