Double-ended tubular wrench 8 x 9 mm

TOPEX tubular wrench (ref. no. 35D931) with 8 x 9 mm hexagonal sockets. It can be driven by a knob inserted through holes in the body. The hexagonal cross-section of the tips allows the tubular wrench to be turned with a flat wrench. The TOPEX brand is aimed at DIY enthusiasts.