Boosted sends wrenches like this for free with their extended range batteries, and might even send them out if you just email and request a pair. I needed some, but didn't want to wait for shipping, so we whipped up the CAD and had a working 3d printed pair within a few hours. So we figured we'd share in case anyone else was in the same boat. Or, if you just want them in a different color... Cheers!