Spi 30-464-2 Caliper Attachment Set 5 Pc 6 Inch

Product Description

The SPI 30-464-2 is a 5-piece caliper attachment set designed for use with 6-inch vernier, dial, and digital calipers. Built from hard chrome-coated steel, the set extends the measuring capability of a standard caliper to include groove depth and bore depth measurements. Accuracy is rated at 0.001 inch. The overall length of the attachment is 6 inches, and the full set weighs 0.6 pounds. Licensed metrology and inspection technicians, machinists, and quality control professionals will find this set suited for precision internal and groove measurement tasks in shop and field environments.

This attachment set is used in machine shops, manufacturing facilities, and inspection departments where groove depth and bore depth measurements are required with existing 6-inch calipers. Groove depth capacities range from 0.05 inches to 0.375 inches across the five included pieces, and maximum bore depth capacities extend from 0.4 inches up to 3.0 inches. The set is appropriate for both production-floor use and bench inspection work where a full dedicated gauge set is not available.

Key Features

• 5-piece set covering a range of groove depth and bore depth measurements
• Compatible with standard 6-inch vernier, dial, and digital calipers
• Hard chrome finish on steel construction for corrosion resistance and durability
• Accuracy rated at 0.001 inch for reliable precision measurement
• Groove depths: 0.05, 0.07, 0.2, 0.255, and 0.375 inches
• Maximum bore depths: 0.4, 0.625, 1.0, 1.25, and 3.0 inches

Compatibility

Designed for use with 6-inch vernier, dial, and digital calipers as a caliper attachment accessory.

Installation Notes

Attachment of these pieces to a caliper should be performed by a qualified machinist or metrology technician familiar with caliper accessory installation. Ensure the caliper jaws and the attachment contact surfaces are clean and free of debris before mounting. Zero the caliper after attaching each piece before taking measurements to confirm accurate readings. Store attachment pieces in a protected case when not in use to preserve surface finish and dimensional integrity.