Looking for opinions. Looking at this unit

golfworks.ca/.../

My 8 iron sees the most "action" in my bag. we top dress the fairways (with usga grade sand) a lot at my club and as a result from bunkers and top dressed fairways sand can blast the face. Not concerned about the face but the grooves. Would like to re edge some of them

Curious as to opinions on what people use. Not looking to "refurbish" the face as they are wear items however want to refresh the sand marks in the grooves. I clean my clubs after every round and practice session. They are used 5 times a week on average and they are cleaned on each shot as well with a wire brush and my towel.

Thanks