Spi 30-483-2 Caliper Groovemaster 6 Inch Calipers

Product Description

The SPI 30-483-2 is a Groovemaster caliper accessory designed for use with 6-inch vernier, dial, and digital calipers. Machined from steel with a hard chrome coating, this single-piece accessory extends the measurement capability of a standard caliper to reach internal grooves and bores. It features a 0.4-inch flange width and delivers a groove depth reach of 13 inches, making it suited for precision measurement tasks in toolrooms, machine shops, and maintenance environments. A licensed metrology technician or machinist installs and uses this accessory as part of routine dimensional inspection work.

The 30-483-2 is intended for use in settings where internal groove dimensions must be measured accurately using an existing 6-inch caliper. Typical applications include bore groove inspection on machined components, hydraulic cylinder parts, and similar precision workpieces. The hard chrome finish provides corrosion resistance and durability under regular shop use. This accessory is sold as a single piece and is well suited for toolroom, quality control, and field maintenance inspection tasks.

Key Features

• Groovemaster design extends reach of standard 6-inch calipers into internal grooves
• 13-inch groove depth capacity for deep internal measurement applications
• 0.4-inch flange width for stable engagement in narrow groove geometries
• Minimum bore diameter reach of 5 inches
• Steel construction with hard chrome coating for durability and corrosion resistance
• Single-piece accessory, no additional components required

Compatibility

Designed for use with 6-inch vernier, dial, and digital calipers. Confirm jaw attachment method is compatible with your specific caliper model before installation.

Installation Notes

Installation is typically performed by a machinist or metrology technician familiar with caliper accessories. Power down or de-energize any associated measurement station before attaching accessories to precision instruments. Handle the chrome-coated contact surfaces carefully to avoid nicks or scratches that could affect measurement accuracy. Follow the caliper manufacturer guidelines for attaching and securing groove measurement accessories.