Fiberglass Folding Rule, Inside Reading – Measuring Tool for Electrical and Construction Applications The Klein Tools Fiberglass Folding Rule, Inside Reading model 910-6, is a durable measuring tool designed for professional use in electrical distribution, lighting solutions, and wire and cable installations. Constructed of tough nylon reinforced with glass fibers, this 6-foot folding rule offers resistance to weather, abrasion, and most chemicals, making it suitable for demanding jobsite conditions. The inside reading design provides precise, flat measurements with graduations engraved on both sides and edges to 1/16 inch (1.6 mm), facilitating accurate marking and layout tasks. Specifications Material: Fiberglass reinforced nylon Length: 6 feet (183 cm) Reading Type: Inside Graduations: Engraved on both sides and edges to 1/16 inch Dimensions: Width 0.75 in, Height 0.675 in Product Weight: 0.33 lbs Manufacturer Part #: 910-6 UPC: 092644863110 Features Constructed of tough, flexible nylon reinforced with glass fibers for enhanced durability Weather resistant: waterproof and will not warp or peel in wet conditions Easy-to-read black boldface markings on yellow background with red stud center markings every 16 inches Positive locking joints for secure 90° and 180° angles Stainless steel spring hinges for added strength and longevity Washable surface allows dirt, mud, and concrete to wash off easily Measurements engraved on both sides and edges for versatile use Downloads & Links Spec Sheet