Spi 14-686-0 Flexible Steel Rule 18 in Decimal Metric

Product Description

The SPI 14-686-0 is an 18-inch flexible steel rule designed for precise linear measurement in fabrication, machining, plumbing layout, and general trade work. The rule features dual graduation in decimal and metric formats, with 1/100-inch and 1/2-inch markings on the inch side and millimeter markings on the metric side. At 3/4 inch wide and just 0.0200 inches thick, the flexible blade conforms to contoured or irregular surfaces where a rigid rule would produce inaccurate readings. The satin chrome-plated finish reduces glare under shop lighting and resists corrosion from shop fluids. Licensed tradespeople and machinists reach for this rule when layout accuracy and durability matter.

The 14-686-0 is suited to residential and commercial trades requiring reliable field measurement. Plumbers use flexible rules to measure pipe runs along curves and fittings. Sheet metal workers and HVAC techs use them for ductwork layout on curved surfaces. The horizontal scale orientation supports straightforward reading along a workpiece. The rule ships individually and is appropriate for a technician toolkit or shop bench.

Key Features

• Flexible blade conforms to curved and irregular surfaces for accurate measurement
• Dual graduation: decimal inch (1/100 inch) and metric scales on a single rule
• Satin chrome finish reduces glare and provides corrosion resistance
• Slim 0.0200-inch blade thickness allows measurement in tight spaces
• 3/4-inch blade width provides a stable reading surface without adding bulk
• Non-magnetic, no hook — straightforward tool with no added mechanical parts

Compatibility

Designed as a general-purpose flexible steel rule compatible with standard measurement tasks across HVAC, plumbing, machining, and fabrication trades requiring 18-inch decimal and metric layout capability.

Installation Notes

No installation is required for this measuring tool. Store the rule flat or rolled loosely to avoid permanent creasing of the flexible blade. Clean with a dry or lightly oiled cloth to maintain the chrome finish and graduation legibility. Do not use the rule as a cutting guide with a utility knife, as this will damage the graduated edge.