The CBW1 is an 8mm open and 10mm open end wrench. This small, nickel plated wrench can be used on brakes, derailleurs, etc. Hole in wrench allows easy hanging on peg board. The CBW4 is a 9mm open and 11mm open end wrench. This small, nickel plated wrench can be used on brakes, derailleurs, etc. Hole allows easy hanging on peg board.
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