3/8" blade cut Size 4FC Finish Blade has a 3/8" blade cut (9.5 mm). Use this blade for a finish that most closely resembles hand scissoring. The blade of choice for a short clip on a mixed breed, such as a Lhasa, Shih Tzu, Yorki, or Maltese. Most groomers who have experienced the performance of this blade are sold on its smooth, velvety cut.