Features Chainsaw Sharpener Kit: You will get 30Pcs in 3 size 4mm, 4.8mm, 5.5mm, 10pcs each size, which can meet your daily use and replacement needs. Material: Our diamond chainsaw sharpener are made of titanium plated, the diamond particles on the drill bit are polished finely and evenly, hard and not easy to wear, surface anti-rust, wear resistance, high hardness, these are specially designed for chainsaws and steel, with long service life. Wide Application: There are three sizes in our chainsaw sharpener set, which are suitable for different sizes. which are suitable for chain saws of different sizes. can also be used for mold making and metal surface polishing. Easy to Install: The metal chain sharpener kits is easy to install, It can be changed in just two steps, these drill bits are specially designed for electric chain saw, which is harder and more wear-resistant, so you don’t have to change it often. Strong Effect: This is a powerful sharpening tool with high hardness diamond chainsaw, get rid of the troublesome hand mill, so you can finish grinding things as fast as. Specification: Item Type: Chainsaw Sharpener Material: Emery Shank Diameter: Approx. 3mm / 0.12in Applicable Tools: For electric grinder, electric drill and other electric tools. 4mm / 0.16in (approx.) Grinding Head: Suitable for electric chainsaw, for 3/8 chain. 4.8mm / 0.19in (approx.) Grinding Head: Suitable for small chainsaw, for 325 chain and large 3/8 chain. 5.5mm / 0.22in (approx.) Grinding Head: Suitable for large chainsaw, for 404 chain.  Package List:30 x Chainsaw Sharpener Package List 30 x Chainsaw Sharpener