Quite a lot it seems. The more DMM got into the design process, the more they realised how much they could improve upon the standard designs.
First off we gave it a wide rubber handle to make it easy to hold, so no more skinned knuckles when your hand slips off and rags against the rock. The rubber handle stops the metal digging into your hand when you hit a stuck nut. The rubber handle can also be taken off to use the 17mm spanner, useful for tightening those loose bolts.
It’s made from the finest Sheffield stainless steel, laser cut to a precise shape which tapers down so that you can reach into narrow placements.
Top tip: Tie a small loop of 3 or 4mm accessory cord through the hole in the handle and use this to attach the Nutbuster to your racking biner. This reduces the danger of stabbing yourself with the nut key in a fall situation.