The specially designed lower blade allows hair to flow into the cutting blades for fast and accurate cutting. The convenient adjustable blade feature allows you to quickly adjust from very close cutting to medium length, while saving you the added expense of extra blades.

Available in drop down below:
Oster Medium Blade # 913-50 Fits Fast Feed Clippers.
17-teeth cuts from 1/100″ to 3/32″ (0.25mm to 2.4mm)

Oster Fine Blade # 913-53 Fit Fast Feed Clippers.
25-teeth cuts from 1/100″ to 3/32″ (0.25mm to 2.4mm)