Durability Metal Chainsaw File 4mm/4.8mm/5.5mm Round Sharpener for 3/8" Chain
1set includes 4.0mm Sharpener,4.8mm Sharpener,5.5mm Sharpener. Our Chainsaw File sharpens chains and extends the life of your chainsaw, making it accessory for any serious tool collection. 4.0mm Sharpener Suitable for 3/8 chain.