The Black Diamond Professional Lever Grease Gun delivers heavy-duty performance with up to 10,000 PSI of pressure and an output of up to 1 oz per 28 strokes. Its variable-stroke lever design allows efficient greasing in tight spaces where handle movement is limited. Built with an aluminum die-cast head featuring a bulk loader valve and air bleeder, it supports versatile 4-way loading for added convenience. Finished with a durable non-slip powder coating and equipped with a 6" steel extension and coupler, this grease gun uses standard 14 oz cartridges with a 1/8" NPT threaded connection.