Oster 76911-076 (911-07) blade. Size 1A. Fits Oster Turbo 111 clippers and Oster Progienic Model 10 clipper. Cuts hair 1/8" (4 mm). For medium fades, removing a lot of bulk at one time on coarse or curly hair. Also to remove a line of demarcation of a 1 1/2 blade.