Spi 13-931-1 Flexible Steel Rule 6 Inch 10R Graduation

Product Description

The SPI 13-931-1 is a flexible stainless steel rule designed for precision measurement in trade and industrial applications. It measures 6 inches in overall length and 1/4 inch in overall width, making it compact enough for tight spaces while still delivering reliable accuracy. The rule features a 10R graduation style with dual-scale markings in 1/32 and 1/64 inch increments, giving technicians the resolution needed for close-tolerance layout and inspection work. The brushed silver finish reduces glare under shop lighting and resists corrosion. Plumbers, pipefitters, HVAC techs, electricians, and machinists all use rules like this for scribing, gauging, and checking measurements during fabrication and installation.

This rule is suited for bench work, field service, and layout tasks where a rigid rule would be impractical. The flexible construction allows the blade to conform slightly to curved or irregular surfaces, useful when measuring pipe diameters, curved sheet metal, or contoured fittings. Its small form factor fits easily into a tool pouch or apron pocket. The horizontal scale orientation and clear etched graduations make it easy to read in low-light field conditions without magnification.

Key Features

• Flexible stainless steel blade conforms to curved surfaces for versatile measurement
• 6 inch overall length with 1/4 inch overall width — compact for tight-access work
• Dual graduation in 1/32 and 1/64 inch increments for fine-resolution measurement
• 10R graduation style with horizontal scale orientation
• Brushed silver finish reduces glare and resists corrosion
• Non-magnetic and no hook — straightforward layout and inspection tool

Compatibility

Designed as a general-purpose flexible steel rule suitable for use across HVAC, plumbing, electrical, and light fabrication trades wherever a 6 inch precision rule is required.

Installation Notes

No installation required. This is a hand measurement tool intended for layout, scribing, and inspection tasks. Keep the blade clean and free of burrs to maintain graduation legibility. Store flat or in a protective sleeve to prevent permanent deformation of the flexible blade.