If you're looking for the best pneumatic grease guns, consider Saker Mini Grease Gun. It comes with a needle nozzle for precise grease application. Further, it can store up to 3 oz grease in it. Thus, you can use it for your small greasing needs.
Above all, the easy-to-use features make it shine among many others. Firstly, it's easy to carry due to its lightweight with its 1 lb weight. Secondly, you can operate with just one hand. You can use these magical air-operated grease guns for lubricating air tolls with grease types fittings.