The Insize Inside Calipers 18–300mm 7240-300 is a precision measuring tool designed for accurately checking internal dimensions such as hole diameters, slot widths, and internal clearances. Built from high-quality hardened steel, this caliper offers excellent durability, smooth operation, and consistent measurement performance in demanding workshop and industrial environments.
With a wide measuring range of 18mm to 300mm, it is ideal for measuring larger internal dimensions with ease. The adjustable legs provide precise comparison measurements when used with a ruler or micrometer, while the strong spring joint ensures stable tension for accurate and repeatable results.
The Insize 7240-300 Inside Calipers are suitable for machinists, engineers, fabricators, and technicians who require reliable internal measurement tools for professional applications.
🔧 Key Features
- Measuring range: 18–300mm
- Precision internal measuring calipers
- High-quality hardened steel construction
- Smooth adjustable legs for accurate measurement
- Strong spring joint for 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













