Spi 13-922-0 Flexible Steel Rule 18 Inch 5R

Product Description

The SPI 13-922-0 is a flexible steel rule designed for precise linear measurement in fabrication, machining, and general trade applications. Measuring 18 inches in overall length with a 3/4-inch width and 0.0200-inch thickness, this rule features a 5R graduation style with three scales: 1/100, 1/32, and 1/64 inch. The black chrome-plated finish reduces glare in bright shop environments and provides corrosion resistance. Machinists, pipefitters, sheet metal workers, and maintenance technicians use this rule as a reliable everyday measuring tool. Its flexible construction allows it to conform to curved or irregular surfaces where a rigid rule would give inaccurate readings.

This rule is suited for both residential and light commercial trade work, including HVAC fabrication, plumbing rough-in layout, electrical conduit work, and general mechanical service. The horizontal scale orientation makes it straightforward to read flat on a workbench or against a surface. The 5R graduation provides four clearly defined measurement scales in a single tool, reducing the need to swap between rules during a job. It does not include a hook and is non-magnetic, making it compatible with use around sensitive electronic components.

Key Features

• Flexible steel construction conforms to curved surfaces for accurate measurement
• 5R graduation style with 1/100, 1/32, and 1/64 inch scales on a single rule
• Black chrome-plated finish minimizes glare and resists corrosion
• 18-inch overall length with 3/4-inch width for easy handling and readability
• Non-magnetic design safe for use near electronic and sensitive components
• Thin 0.0200-inch profile allows measurement in tight or recessed areas

Compatibility

Designed as a general-purpose flexible steel rule suitable for standard measurement tasks in HVAC, plumbing, electrical, and mechanical trade applications.

Installation Notes

No installation is required for this measuring tool. Store flat or in a protective sleeve to prevent bending beyond the intended flexible range and to preserve graduation markings. Keep the rule clean and dry to maintain the integrity of the black chrome-plated finish. Handle with care to avoid permanent kinking, which can affect measurement accuracy.