Features 1、For Sharpener: Able to work in conjunction with electric grinder to better sharpen the chainsaw chain and tooth blade. 2、Various Tools: Including 1pc sharpening tool, 1pc ruler and 3pcs round file in different sizes, meeting various needs. 3、Reliable Work: With clear marks, the chainsaw sharpening attachment promises high accuracy and easy operation as well. 4、Good Material: Adopting premium high speed steel with greater hardness, very sturdy with wearing, high temp and impact. 5、Easy to Install: Comes with light weight and compact size, the simple installation can be quickly finished in minutes. Specification Item Type: Chainsaw Sharpening Attachment Material: High Speed Steel Function: Accessories for sharpening tools. Package List 1 x Sharpening Accessory 3 x Polishing Tools 1 x Ruler