由优质树脂粉添加多种磨料混合烧结而成。用于划片刀的修正与开刃，校正刀片外形与开刃，划片时，需定期对刀片进行修磨，以保持刀片的锋利。

        特点：修磨效果好，刀刃效果明

        规格：75*75*1.0

            磨粒颗粒度：          400#  ，                                            

                                                  600#，

                                                  800#，

                                                  1000#，

                                                  2000#，

                                                  2500#，

                                                  3000#，

                                                  4000#等