Get this Park Tool Sw-6 Spoke Wrench - 3.7Mm from Halfords for only £10.99. We found this offer 2+ weeks ago, so hurry whilst stocks last! - Manufacturers part number: SW-6
Typically found on hub-drive e-bikes (always measure to be sure)
Sized for spoke nipples with 3.7 mm wrench flats
Made in the USA
Hardened, nickel-plated and vinyl-dipped for long life
Professional quality, precision-sized spoke wrench