Nonconductive wrench with wingnut tightener slots

thingiverse

A nonconductive stubby wrench with 1/2 and 9/16 inch sockets. The bottom has slots to use in tightening wing nuts. I use this when working with deep-discharge marine batteries and deep discharge golf cart batteries. Update 1/26/18: I added an SGV variant of this for a lasercutter. Cut it in 1/4" Delron for a vast improvement in strength over the original version. Put colored silicone caulk in the lettering to make them legible. Back to original text: This is functional if printed in ABS and used in situations where something needs to be more than hand-tight, but less than truly tight. Frankly, printed plastic wrenches are wonderful novelties but much too soft to be "real" general purpose wrenches. IMHO, printed closed, box-end wrenches come closer to functionality than printed open-end wrenches. Someday I will try machining some nonconductive tools in Delrin rather than printing them, and suspect that will be a huge improvement. Instructions Print with no support. It may be necessary to clean plastic ooze out the wingnot slots in the bottom, particularly if you print with a raft.