There is something so satisfying about the sound of your shop compressor kicking on as you power up another air tool. Battery-powered, or even worse hand-powered tools can't even begin to compare to the strength emitted through that compressor hose. Save your hand strength as you pack wheel bearings with the ABN 7500 PSI Hi Pressure Grease Gun. This 11in (27.94cm) pistol grip grease gun handle features a 360-degree rotating Z swivel 1/4in NPT female inlet compatible with your grease supply. 7in (17.78cm) rigid tube grease gun fittings included along with a 10 and 18in (25.4 and 45.72cm) flexible hose each outfitted with a 4 jaws coupler spout. Automatic grease gun works with air pump ratios as low as 14:1 up to more common ratios of 40:1, 50:1, 60:1, and 70:1. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.