1, Material: High speed steel, HSS M2 , W4,W9

2, Size as you required,

3, Special features:

                                  1):Shapper teeth tip for easier cutting;

                                  2):Longer product life,teeth stay shaper longer;

                                  3):Better chip clearance;

                                  4):For precision hole drilling.

4.Uses:A:electric work:

                                       1):Electric control box's push botton hole;

                                       2):Refrigeration machine.
              B:Iron work:

                                    1):Sheet metal work;

                                    2):Drills hole installation.