GrooveTech Tools’ DK-Multi is a four-in-one drum key multi-tool. The DK Multi elevates both form and function of the drum key. The centerpiece is a drum key socket optimized for proper fit on the tension rod nut for minimal free play. Separating the DK Multi from other drum keys is the addition of three hex wrenches — 2 millimeter, 2.5 millimeter and 3 millimeter — for adjustment of pedals and other hardware. The tool skeleton is covered by a polypropylene jacket that feels good in the hand and adds a colorful accent.