The Lincoln 5805 Hardened/Clogged Grease Impact Fitting Cleaner is an essential tool for maintaining equipment with grease fittings, designed to effectively clear hardened or clogged grease and ensure optimal lubrication. It features a durable steel drive cylinder, piston, and a high-pressure hose, delivering high-impact cleaning performance for both professional and DIY users. A safety shield provides protection during use, while spare drive seals and a coupler ensure reliable, long-term operation. Compatible with light oils and solvents, the Lincoln 5805 is versatile for various applications in automotive, agricultural, and industrial maintenance. Ideal for grease guns, bearings, joints, and zerk fittings, this tool helps extend machinery and equipment lifespan, keeping them in peak condition.