Robert Larson 850-1115 Inside Caliper 150 Mm

Product Description

The ROBERT LARSON 850-1115 is a 150 mm inside caliper designed for precise interior measurement and layout work in trade and workshop applications. The caliper features a polished finish with brass fittings and a quick-nut adjustment mechanism that allows for fast, repeatable positioning without fumbling with standard friction-set designs. At 0.3 pounds, it is lightweight enough for continuous use on the job. Plumbers, pipefitters, machinists, and general tradespeople use inside calipers to measure bore diameters, pipe IDs, and internal slot widths where direct ruler access is not practical.

This inside caliper is suited for residential and light commercial trade work, fabrication shops, and field service applications. It is commonly used when verifying internal pipe diameters before fitting selection, checking bore dimensions during pump or valve service, and performing layout work on metal or wood stock. The 150 mm measurement range covers the majority of common interior dimensions encountered in plumbing and mechanical service work.

Key Features

• 150 mm measurement range suited to common interior bore and pipe ID dimensions
• Quick-nut adjustment mechanism allows fast, precise setting without slipping
• Polished finish with brass fittings for durability and corrosion resistance
• Lightweight at 0.3 pounds for extended handheld use
• Sold individually as a single unit

Compatibility

Designed as a general-purpose inside caliper suitable for plumbing, mechanical, and fabrication measurement tasks requiring interior dimension readings up to 150 mm.

Installation Notes

No installation is required for this hand tool. Before use, verify the caliper legs are properly seated and the quick-nut adjustment is snug to prevent measurement drift. When measuring pressurized or live systems, shut off flow and depressurize the line before taking any internal bore readings. Store the caliper in a dry location to protect the brass fittings and polished surfaces from corrosion.

Technical Specifications

• Measurement Range: 150 mm
• Weight: 0.3 pounds
• Fitting Material: Brass
• Sold As: Each
• UPC: 00744391120335

Standard Information

• Brand: ROBERT LARSON
• Manufacturer Part Number: 850-1115