Oregon 45 Drive Link Micro-Lite 3/8-Inch Pitch, .043-Inch Gauge, Low Kickback Saw Chain 90SG045G Pitch - 3/8-inch Low Profile Gauge - .043-inch Drive Links - 45 Uses file size - 4.5mm Features Low-vibration Chamfer Chisel cutters with ramped depth gauges, bumper tie straps and standard sequence