The lightweight, durable and easy to maneuver guide bar for light commercial and occasional woodcutters using small to mid-size saws. , Bar Length 18 in, Chain Pitch 3/8 in, Chain Gauge 0.63 in, Drive Links 66, File Size 7/32 in, Included qty. 1, Dimensions L x W x H in. 18.0000 x 3.5000 x 0.5500 in, Product Weight 2.5300 lb. Multi-rivet sprocket for long nose life Lubritec system keeps your chain and guide bar oiled for less friction and longer life Better control, less kickback Pitch 3/8, Gauge 063, chain drive link count 66 Fits Stihl