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The APEX TOOL GROUP LLC X46N is a 6-foot red end extension wood rule designed for inside-read measurement applications. It features a graduated metal slide rule that extends up to 6 inches, allowing technicians and tradespeople to capture inside dimensions accurately. The slide runs under friction in a T-slot at each end, preventing the slide from falling out during use. Graduated to 1/16 inch on both sides and both edges, this rule also marks 16-inch stud centers in red for fast layout reference. It is suited for carpenters, contractors, and trade professionals who need a reliable folding rule for framing, rough-in, and finish work.
The X46N is intended for residential and light commercial construction and remodeling applications. Its inside-read capability makes it especially useful for measuring window and door rough openings, cabinet openings, and other confined spaces where a standard tape measure is difficult to seat accurately. The red stud-center markings support fast layout on standard 16-inch on-center framing.
Designed as a standard 6-foot extension wood rule suitable for general construction, rough-in framing, and finish carpentry measurement tasks.
This is a hand measurement tool and requires no installation. Handle the wooden rule sections with care to avoid cracking or warping, which can affect reading accuracy. Keep the friction slide clean and free of debris to maintain consistent tension in the T-slot. No power tools or fasteners are required for use.
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