Inside calipers with a 6.5 inch jaw opening deliver precise inner diameter measurements in metalworking and machining; hardened steel, 6 5/16 inch legs and 6 1/2 inch opening transfer scales to rulers for accurate marking and QC checks

6.5 Inch Jaw Inside Calipers for Accurate ID Measurements
✔️ 6-5/16 in legs; 6-1/2 in jaw opening; hardened steel

These inside calipers gauge inner diameters of holes and bores, then transfer the measurement to a ruler for precise marking. Used in metalworking, machining, and quality control environments.

✅ 6-5/16 in legs; 6-1/2 in jaw opening
✅ Forged steel legs with hardened points for precise marking
✅ Self-seating adjusting screw with washer and nut
✅ Hardened and tempered bow springs and fulcrum spools for steady tension
✅ Meets government spec GGG-C-95; pairs with precision rulers for transfer

💡 What is an inside caliper used for in precision measurement? Inside calipers are handy tools for quickly gauging inner diameters and transferring those measurements to a ruler for accurate marking and inspection.
- Handy for quick bore checks on housings and jigs
- Useful for transferring measurements to layout tools
- Helps maintain consistency across small-diameter parts
- Great for QC workflows that require precise inside dimensions