The Wahl Ultimate Competition Series Size 10 blade leaves the coat 1.8 mm. This A5 blade fits all brands of A5 model clippers. Check which clipper models this blade fits below, before you buy.
The black coating on Wahl's Ultimate series blades fills in imperfections in the steel for a faster clip and smoother result with fewer track marks. Speeds up both clipping and finishing time. Favoured by experienced groomers, for competitions and the show-ring.