A reliable Oregon saw chain that boasts a global share. Chain saw replacement blade. Please check the chain type (25AP, 25F, 21BPX, 95VPX, 91VXL, 90PX, 72DPX, 73DPX, 18HX). Reference Materials 25AP: 1/4 Pitch 0.050 Gauge File is Φ4.0 Use 25 F: 1/4 Pitch 0.050 Gauge File uses Φ4.0 Use (Bamboo) 21BP: 325 Pitch 0.058 Gauge File is Φ4.8 Use 95VP: 325 Pitch 0 0 Gauge Griller Pickpocketing is Φ4.8 use; 91VXL: 3/8 pitch; 0.050 gauge; File uses Φ4.0 (91PX / 91VG compatible); 90PX: 3/8 pitch; 0.043 gauge; File uses Φ4.0 (90SG compatible); 72DPX: 3/8 pitch; 0 pitch; 0.0 pitch; 0 g; 0.050 g; 0 g; 0 g; 0 g; 0 g; SG thread; 0 is Φ5.5 Usage: 73DPX: 3/8 Pitch 0.058 Gauge File Use Φ5.5 18HX: 404 Pitch 0.080 Gauge File Use Φ5.5 For Harvester