Park Tool QTH-1 Quick Change Bit Driver Set kids It offers strong holding power

It offers strong holding power combined with quick

Tapered legs

but it's also available in a range of more contemporary sizes

Drop Bend Style: Compact

Park Tool QTH-1 Quick Change Bit Driver Set kids It offers strong holding powerThe QTH 1 is an ergonomic T handled bit driver equipped with eight common bits to fit a wide variety of fasteners and fittings found on bicycles. The magnetic quick change" handle allows for one handed operation and makes changing bits quick and easy. The bit holder can be magnetically attached to any magnetic surface such as a repair stand or tool box, or can be permanently mounted to any wall or tool board. The QTH 1 is a professional grade tool