MATERIAL:
High speed steel(SKH51)
SIZE RANGES;
12mm-100mm diameter
APPLICATIONS:
For tough drilling on 1.6mm thick iron plates.

USES:
(A) Electric work:
1.Electric control box's push-button hole.
2.Refrigerationg machines.

(B)Iron work:
1.Sheet metal work.
2.Drill hole installationg.

SPECIAL FEATURES:
(A)Sharper teeth tip for easier cutting.
(B)Longer product life,teeth stay sharp longer.
(C)Better chip clearance.
(D)For precision hole drilling.

SURFACE TREATMENT:
(A) Nickel coated (B)Golden finish
(C) Sand blasted (D)Black oxide)