Spring Divider Caliper 100mm 4in Internal Steel

A 100mm internal spring divider caliper for checking internal measurements on bores, slots and narrow gaps. Made from steel and fitted with precision ground points, it is a straightforward hand tool for marking out and comparing internal dimensions where a simple mechanical check is needed.

Used across engineering, machining, workshop use and general fitting work, this type of caliper helps when checking the internal width of openings before machining, assembly or adjustment. It suits buyers carrying out metalworking, maintenance and bench work where quick comparison measuring is often more practical than reaching straight for a digital tool. For repeated workshop jobs, it can be useful for checking consistency between similar parts and openings.

The 100mm capacity makes it suitable for smaller internal measuring tasks, while the spring pattern helps with controlled adjustment during use. Precision ground tips give clear contact points when working inside bores or slots, which is useful when access is limited and accuracy depends on a steady feel in the hand. The steel construction suits regular bench and workshop handling, and the compact size makes it easy to keep in a toolbox, drawer or measuring kit without taking up much room. A practical option when you want a dedicated tool for internal checks rather than adapting an external measuring tool for the job.

Internal calipers specifications

• Size: 100mm / 4in internal caliper for smaller measuring and comparison work.
• Material: Steel construction for regular workshop and engineering use.
• Function: Made for checking internal measurements in bores, slots and gaps.
• Point design: Precision ground points help give accurate contact on internal surfaces.
• Handling: Spring divider pattern allows controlled adjustment during use.

A useful addition for accurate internal measuring in the workshop or on the bench.