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The LENOX 1991406 is a metal-cutting jig saw blade designed for tradespeople and professionals who need reliable, repeatable cuts through ferrous and non-ferrous metals. Measuring 4 inches in length, 3/8 inches in width, and 0.050 inches in thickness, the blade is built to handle the rigors of sheet metal fabrication, pipe cutting, and structural steel work. Sold in a 3-pack, the 1991406 replaces the discontinued LENOX part LEN20305, making it a direct swap for existing inventory or service kits. The blade mounts to standard jig saw chucks and is suited for both residential and light commercial metalwork applications.
This blade is used in metal-cutting applications across plumbing, HVAC, and general construction trades where a jig saw is the preferred cutting tool. Typical scenarios include cutting sheet metal duct sections, metal junction boxes, conduit support straps, and light structural steel. The 3-pack format is practical for service vans and shop inventories where blade turnover is frequent. It is compatible with jig saws that accept standard T-shank or U-shank blade formats — verify your tool's accepted shank type before ordering.
The LENOX 1991406 is a direct replacement for LEN20305 and is compatible with jig saws accepting blades of this profile. Verify shank type compatibility with your specific tool before installation.
Blade installation should be performed by a qualified tradesperson familiar with portable power tool safety. Always disconnect the jig saw from its power source before changing blades. Secure the blade fully in the chuck mechanism before resuming operation, and confirm the blade is locked with zero play. Eye protection and cut-resistant gloves are standard PPE when handling and installing metal-cutting blades.
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