Oster CryogenX Detachable Pet Clipper Blade, Size 30 (078919-026-005) Size 30 detachable pet clipper blade cuts fur to 1/50 inch (0.5mm) Fits Oster A6, Golden A5, Turbo A5, Power Max, and PowerPro Ultra Clippers Heat treated to greater than 1,000 degrees F for added toughness and strength Cryogenically frozen for durability Available in a variety of sizes to suit any coat type and fur length