Starrett 51347 Flexible Steel Rule 6 in 5R Graduation

Product Description

The STARRETT 51347 is a flexible steel rule designed for precision linear measurement in tight or contoured spaces. At 6 inches overall length and 1/2 inch width, this rule features 5R graduation with three scales: 1/100 inch, 1/32 inch, and 1/64 inch. The satin chrome plating reduces glare under shop lighting, making graduation lines easier to read. At 0.032 pounds, it is light enough for pocket carry on the job. Machinists, tool and die workers, HVAC fabricators, and plumbers use this rule where a rigid rule cannot conform to curved or recessed surfaces.

This rule is suited for bench work, layout, and inspection tasks in machine shops, fabrication shops, and field service environments. The flexible construction allows it to bend against irregular surfaces without permanent deformation, making it practical for pipe measurements, duct fabrication layout, and general trade use. The horizontal scale orientation and silver satin chrome finish support fast, accurate readings in variable lighting conditions.

Key Features

• Flexible steel construction conforms to curved and recessed surfaces without permanent set
• 5R graduation style with three scales: 1/100 inch, 1/32 inch, and 1/64 inch
• Satin chrome plating reduces glare and improves graduation contrast
• Compact 6 inch length and 1/2 inch width for tight-clearance and pocket use
• 0.0200 inch thickness keeps the rule low-profile in confined measuring situations
• No hook, non-magnetic construction for clean use around sensitive components

Compatibility

Designed as a standard flexible steel rule suitable for general precision measurement tasks across machining, fabrication, HVAC, plumbing, and electrical trades.

Installation Notes

No installation is required for this hand tool. Store flat or in a protective sleeve to prevent bending beyond its rated flex range, which can affect graduation accuracy over time. Clean the rule surface with a dry cloth after use to preserve the satin chrome finish and prevent corrosion. Do not use as a cutting guide with utility knives, as edge damage will compromise measurement accuracy.