Oster Comb Attachment #0 (1/16"), The Oster universal Comb allows you to cut hair to a specific, uniform length. All comb sizes are designed to fit any Oster Clipper, as well as most other clippers available. And they are easy to use - simply attach comb to the base of the blade, pull up and secure into position. The Universal Comb is part of a complete line of quality Oster grooming products.