A sai, the must frequent maintenance but also the sharp blades. Make sai lyrics, not according to the desired size. The customer is charged after them, often to build page.
The slide-mail addresses this need frequent maintenance required. Another blade is not sharp. Oil filling meat, not the size you want. My clients are often complex in the post.
Planers file used to be maintenance frequently, besides the blade is not sharp. The meat is not planing file according to size. Get customer complaints frequently in the post.