Spi 13-925-3 Flexible Steel Rule 24 in 3R Graduation

Product Description

The SPI 13-925-3 is a flexible steel rule measuring 24 inches in overall length with a 3/4-inch overall width and a black chrome-plated finish. Graduated in the 3R style, it carries three scales on a single edge: 1/32, 1/50, and 1/64 inch, giving machinists, pipefitters, fabricators, and layout technicians a single tool that covers the most common fractional and decimal-inch increments. The rule flexes to conform to curved or irregular surfaces without taking a permanent set, making it practical for work that a rigid rule cannot reach cleanly. At 0.0200-inch thickness, it slides easily into tight clearances.

This rule is suited to trade and industrial environments where quick, accurate linear measurement is required on flat, curved, or contoured workpieces. Typical applications include metal fabrication shops, HVAC duct layout, pipe fitting, and general mechanical assembly. The horizontal scale orientation reads naturally left-to-right, and the black chrome finish reduces glare under shop lighting, improving readability in low-contrast conditions.

Key Features

• 24-inch overall length with 3/4-inch width for broad layout coverage
• 3R graduation style provides three scales: 1/32, 1/50, and 1/64 inch on one rule
• Flexible construction conforms to curved and irregular surfaces
• Black chrome-plated steel finish reduces glare and resists corrosion
• 0.0200-inch blade thickness fits into tight spaces and narrow slots
• No hook, no magnet — straightforward blade-only design for direct measurement

Compatibility

Designed as a general-purpose flexible steel rule for use with standard rule holders and compatible with most professional layout and measurement setups requiring a 24-inch graduated blade.

Installation Notes

No installation is required for this hand measurement tool. Store the rule flat or in a designated rule holder to prevent permanent bending or edge damage. Avoid using the rule as a cutting guide with sharp utility knives, as this can damage the graduated markings. Clean with a dry cloth after use in oily or wet environments to preserve the black chrome finish.