DOP90PX050GST Loop-Saw Chain. Micro-Lite™ 90PX Chamfer Chisel Chain. 3/8" Pitch Low Profile .043 Gauge 50 Drive Links. Fits Stihl model 009, 009L, 010, 011, 012, 015, 017, 018, 018C, 019, 019T, 020, 020T, 021, 023, 023C, 023L, E10, E14, E140, E180, E180C, HT 130 Pole Pruner, HT 131 Pole Pruner, HT 250 Pole Pruner, HT 73 Pole Pruner, HT100 Pole Pruner, HT101 Pole Pruner, HT70 Pole Pruner, HT75 Pole Pruner, MS 180 C-B, MS 180 Cspw, MS 191T, MS 192T, MS 200T, MS 210, MS 210 C-BE, MS 210 C, MS 220, MS 220 Q, MS E140, MS E180C Chain Saws and Pole Saws. Replaces Chain part number 90SG050G