Use

The metal non- iron belongs to, produces and grinds on the surface.

A number of
abrasive paper

#40,#60,#80,#100,#180.

Can stick and deduct or stick by oneself, combine the way.

Can cut the size such as 2 of any need for the guest 2"、3" 、5" 、5"5 holes、6"....ctc.