Starrett 51334 Flexible Steel Rule 6 in 3R Graduation

Product Description

The STARRETT 51334 is a flexible steel rule designed for precise linear measurement in trade and industrial applications. Measuring 6 inches in overall length and 1/2 inch in width, this rule features 3R graduation with three scales: 1/32, 1/50, and 1/64 inch. The satin chrome-plated finish reduces glare, making it easier to read graduations in bright shop or field lighting. At 0.020 inch thick, the blade flexes to conform to curved or irregular surfaces without losing accuracy. Machinists, pipefitters, HVAC technicians, and fabricators rely on this type of rule for layout, inspection, and fit verification tasks.

The STARRETT 51334 suits bench work, field service, and inspection environments where a short, readable rule is needed. The 6-inch length is well suited to tight spaces, small component measurement, and tasks where a full 12-inch rule is impractical. The 3R graduation style provides three distinct scales on a single blade, reducing the need to switch tools during layout or inspection work. It is not magnetic and does not include a hook end, making it a straightforward blade rule appropriate for general-purpose measurement across HVAC, plumbing, electrical, and mechanical trades.

Key Features

• Three graduation scales on one blade: 1/32, 1/50, and 1/64 inch
• Flexible blade conforms to curved surfaces without distorting the reading
• Satin chrome-plated finish minimizes glare for easier scale reading
• Compact 6-inch length fits confined spaces and small-component work
• Horizontal scale orientation for standard left-to-right reading
• Lightweight at 0.032 pounds — suitable for tool pouches and field kits

Compatibility

Designed as a general-purpose flexible steel rule for trade professionals requiring short-length precision measurement tools in fabrication, inspection, and service applications.

Installation Notes

No installation is required for this measuring tool. Store the rule flat or in a protective sleeve to prevent bending the blade beyond its intended flex range. Avoid using the rule as a cutting guide with utility knives, as repeated scoring contact will damage the graduation markings. Clean with a dry cloth after use in oily or wet environments to preserve the satin chrome finish.