Spi 13-876-8 Flexible Steel Rule 24 Inch 4R

Product Description

The SPI 13-876-8 is a flexible steel rule measuring 24 inches in overall length with a 3/4-inch overall width and a satin chrome-plated finish. Built from steel and finished in silver, this rule carries a 4R graduation style, offering four scales on a single rule: 1/16, 1/32, 1/64, and 1/8 inch. The flexible construction allows it to conform to curved or irregular surfaces where a rigid rule would produce inaccurate readings. At 0.0200 inches thick, it is thin enough to slip into tight spaces without sacrificing legibility. Machinists, pipefitters, plumbers, and HVAC fabricators reach for this type of rule during layout, inspection, and measurement tasks that demand fine resolution.

This rule is suited for use in both shop and field environments. Its horizontal scale orientation and 4R graduation make it a standard choice for precision layout work on sheet metal, pipe, ductwork, and structural components. The flexible blade is particularly useful when measuring along curved pipe sections, rolled sheet stock, or contoured fittings where a rigid rule cannot lay flat against the workpiece. It carries no hook and is non-magnetic, keeping it neutral in applications where magnetic tools are not appropriate.

Key Features

• Flexible steel blade conforms to curved and irregular surfaces for accurate measurement
• 4R graduation style provides four scales: 1/16, 1/32, 1/64, and 1/8 inch
• Satin chrome-plated finish reduces glare and resists corrosion in wet or humid environments
• 24-inch overall length covers common layout ranges in a single span
• 0.0200-inch blade thickness fits into narrow slots and tight clearances
• Non-magnetic construction suitable for use near sensitive components

Compatibility

Designed as a general-purpose flexible steel rule compatible with standard layout and inspection tasks across HVAC fabrication, plumbing, and mechanical trades where 24-inch flexible rules are specified.

Installation Notes

This rule requires no installation. Handle with care to avoid permanent bends that would compromise measurement accuracy. Clean with a dry or lightly oiled cloth to preserve the chrome-plated finish. Store flat or rolled loosely to prevent kinking along the blade.