I have a Ridgid Hammer / Pulse Drill R5010. Has anyone ever had a problem with the keyless chuck? It is a great tool and its been invaluable for the situations where I needed it. But.....I have not used it that much and the chuck is locking up. The chuck will not release bits, even after I spray it down with WD40 and tap it with a hammer trying to "break it free". Thanks for your input.