Looking for a replacement blade for your Wahl detachable blade clipper? Wahl's Ultimate Competition blades can be used with all of those clippers and compatible competitor clippers. Blade sizes range from 10mm (#3F) to .4mm (#50), which is a close, surgical grade cut. The #30 blade can be used with Wahl's Stainless Steel Attachment Guide Combs for even longer cutting length options. The Ultimate Competition series goes through additional processing during manufacturing that coats the blades to protect against rust and keeps them sharper longer than the original Competition series. Compatible with Wahl's KM Cordless, KM10, KM5, KM2, KM2 Deluxe, Thick Coat Clipper, MaxCoat, Power Grip, SS-Pro, Stable Pro Plus, and X-Block clippers.