Klein Tools 91163B Folding Ruler – 6-Foot Fiberglass with Brick Scale | Outside Reading

Overview

Meet the Klein Tools 91163B Folding Ruler, a 6-foot brick fiberglass model designed to handle demanding measurements across woodworking, metalworking, and DIY projects. Built from tough nylon reinforced with glass fibers, this ruler is engineered to resist weather, abrasion, and many chemicals you may encounter on busy job sites. The outside edges are marked with 1/16-inch graduations for fast imperial readings, while the inside faces feature standard brick scale measurements. Engraved graduations on both sides ensure legibility over years of use, even when the tool is folded, opened, or subjected to rough handling.

Designed for real-world tasks, this ruler integrates multiple measurement systems in a single tool, reducing the need to juggle devices. The combination of outside reading and brick scale supports a variety of layouts—whether you’re laying out long boards, confirming masonry dimensions, or cross-checking templates on metalwork. The rugged nylon-and-glass-fiber construction stands up to the demands of the workshop while remaining portable and easy to carry from bench to site.

Key benefits at a glance

• BRICK MEASUREMENTS: A folding rule with 1/16-inch graduations on one side and brick-scale on the reverse expands measurement options for diverse projects.
• RIVETED LOCK JOINTS: Durable joints resist loosening, promoting long service life even with frequent folding and unfolding.
• OUTSIDE READING: Quick, at-a-glance measurements in imperial units for efficient layout work.
• ENGRAVED GRADUATIONS: Clear, lasting markings on both sides help ensure readability over time.
• DURABLE NYLON: Glass-fiber reinforcement provides weather and abrasion resistance for tough jobsite conditions.

Klein Tools has served trades professionals for generations. Since 1857, the family-owned company has produced premium-quality, professional-grade hand tools, built with a focus on performance, durability, and precision. Six generations of engineers, workers, and craftspeople contribute to each tool, selecting high-quality materials and maintaining manufacturing close to home. This legacy reflects a commitment to tools that stand up to real-world use rather than short-term performance claims.

Practical use ideas

• Measure long spans on wood or metal with a single tool that combines external and brick-scale readings.
• Fold and store easily for transport between workspace and job site.
• Rely on engraved graduations for consistent measurements after repeated handling.
• Trust the rugged construction to withstand the conditions of busy workshops and sites.

If you value versatility, durability, and readable markings in a single folding ruler, the 91163B offers a practical option for both professional settings and DIY projects. It’s a measured approach to simplifying layouts while maintaining accuracy and reliability.