In addition to what gustophersmob said, have you tried opening and closing the tools repeatedly while the SAK is underwater? Welcome!Edit: Haha, gustophersmob beat me to it.
Oh, I also forgot to say welcome to MTO! This really is the most friendly place I've seen on the web!
Thanks for the suggestions. Soaked it in WD40 and going to let it sit. I’ve been thinking about an ultrasonic cleaner, but not sure my wife would understand the purchase yet.
Been lurking for a while at MTO and this is my first post.
PS: Where are you located? Different sands may require different solutions, as some sand is very fine the result of crushed stone result of the ice age, and others near beaches result from shells and diets of sea life being ground by the rolling waves or former sea beds.