Spi Z2526-12 Caliper Projection Pin 2 Pc 6 in Calipers

Product Description

The SPI Z2526-12 is a two-piece caliper projection pin set designed to extend the measurement capability of 6-inch dial, vernier, and electronic calipers. Each pin measures 1.5 inches overall length (OAL) and mounts to the caliper jaw to allow inside-reach measurements in grooves, bores, and recessed features that standard caliper jaws cannot access. This accessory is used by machinists, quality control technicians, and tool-and-die professionals who require precise dimensional checks in confined geometries. The set is sold as a matched pair to support consistent measurement across both jaws.

This projection pin set is suited for use in machine shops, inspection rooms, and field measurement applications where standard 6-inch calipers are already in service. The pins attach to the caliper jaws and enable projection-style measurements on parts with steps, shoulders, or recessed diameters. Compatible with dial, vernier, and digital electronic caliper formats in the 6-inch size class, making the set a practical add-on for existing caliper inventories.

Key Features

• Two-piece set provides a matched pair for simultaneous jaw attachment
• 1.5-inch OAL extends jaw reach into grooves, bores, and recessed features
• Compatible with 6-inch dial, vernier, and electronic calipers
• Compact accessory with minimal added weight to the caliper assembly

Compatibility

Designed for use with 6-inch dial, vernier, and electronic calipers. Consult your caliper manufacturer to confirm jaw attachment compatibility before installation.

Installation Notes

Projection pins are installed by a machinist or metrology technician onto the caliper jaws per the caliper manufacturer attachment method. Ensure the caliper is zeroed after pin installation to account for any offset introduced by the pin length. Do not use the caliper for measurements that exceed the load rating of the jaw attachment point. Follow any torque or seating guidance provided by the caliper manufacturer for accessory pins.