Stihl MS270, MS280 18" Bar and Chain Combo 3/8 pitch, .063 gauge, 66DL Fits Many Models See Description for Applicability Stihl MS270, MS280 and many more. See Description For Applicability 18" bar and chain 3/8 pitch, .063 gauge, 66DL Priority Mail to your door quickly! These are high quality aftermarket bar and chain combo's for a great price! **Family run business with 25 years of repair experience and parts sales