Oregon 4.5mm Chain Saw File - 2 Pack 40461 Go to amazon.com Related posts Top 7 best 4.5mm chainsaw file: Which is the best one in 2022? FeatureOregon files remove more material than competitive brands and are still aggressive when other brands reach their end of lifeFinest steel materialSmooth filing actionResists cloggingFile Diameter - 4.55MM DescriptionOregon Part# 40461 4.5Mm Two Pack Files