BLB Brick Lane Bikes 15mm box wrench with ratchet
The most important tool for the fixed gear rider - the 15 mm wrench for the axle nuts. Here in the refined version of BLB. It should be as simple and functional as possible- no bottle opener no fold out extras.
A 15mm open end wrench on one side and a 2 sided 15mm ratchet box wrench on the other. It's long enough to have decent leverage and still be easily stowable in your pocket.