Adjustable Wrench has a thick plasticized coating on the handle for a comfortable grip and easily adapts to any grinder imaginable. This set also includes three additional sets of 5/8-11 nuts that are identical in appearance to the standard set that came with my coffee grinder. I'm not sure why you need three extra sets of grinder nuts, I don't think I've ever needed more than one extra set. A set of wrenches sold for $15.60 at Revain, while a grinder wrench (without additional grinder nuts) sold for $5.99 at Harbor Freight. The only difference between this wrench and the Harbor Freight wrench is that you can tighten it with a hex wrench, and the HF wrench is for thumbscrews only. So if you don't need extra grind nuts or the ability to tighten a wrench with a hex wrench, you'll get a much better deal at Harbor Freight.