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The JOHNSON LEVEL TOOL J4900 is a 98-inch saw guide designed to deliver straight, accurate cuts on the job site or in the shop. It consists of two 49-inch heavy-duty extruded aluminum rails joined by a patented quick-assemble connector, along with a joiner plate and two C-clamps. The aluminum construction keeps the guide rigid and lightweight at 3.15 pounds, making it easy to transport and set up. Licensed tradespeople and skilled DIYers use this guide when precision crosscuts or rip cuts are required across large panels, sheet goods, or other flat stock.
The J4900 is suited for residential and light commercial applications where consistent, repeatable cuts are critical. It works with circular saws, routers, utility knives, jigsaws, and other hand-guided cutting tools. The two-rail design extends total guiding length to 98 inches, covering full 4x8 sheet material in a single pass. The included C-clamps secure the guide firmly to the workpiece, reducing slippage during the cut.
Designed for use with circular saws, routers, utility knives, jigsaws, and other hand-guided cutting tools requiring a straight-edge guide reference.
Carpenters, finish contractors, and flooring installers typically use this guide when cutting sheet goods or large panels. Secure both C-clamps firmly to the workpiece before beginning any cut to prevent the guide from shifting. Verify the rail connector is fully seated before applying tool pressure along the guide edge. Always follow tool manufacturer safety guidelines for the cutting tool being used with this guide.
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