Crankbrothers multi mini tool 17the crankbrothers multi 17 is a fully featured tool with 17 tools the chain tool is cast stainless steel and when removed is an easy to use spoke key the torx key is useful for tightening disc brake rotors features length 3589mm frame 6061 t6 aluminium tools 6051 high tensile steel chain tool 8910 speed compatible spoke wrench 1 2 3 4 hex wrenches 2 25 3 4 5 6 8 screwdrivers phillips flat open wrench 8mm 10mm torx t 25weight 168g b