GT357 Cutting Head - No. 5 Snap On Aesculap. This cutting head is compatible with all clip system clipper models (Oster, Moser, Wahl, Andis, Heiniger, etc.). Cutting height: 6.3 mm GT357 Cutting Head - No. 5 Snap On Aesculap Usable on all clip system clippers: Oster, Moser, Andis, Heiniger, Wahl, Aesculap (only FAV 5), Cutting height at 6.3 mm This cutting height (6.3 mm) is ideal for trimming the back, legs, and body. Recommended for all types of hair. Can be used on hair with some tangles. Regular and clean cut thanks to the specially designed tooth geometry. The Snap On Aesculap range is made from premium carbon steel. For the maintenance of your cutting heads, we recommend using B18 and regularly dusting off to eliminate hair that may be stuck between the teeth. We recommend having your cutting heads sharpened regularly as soon as you notice that the cut is no longer smooth.