Material: CR12MOV
Surface coating: white,gold,black etc
Hex shank or triangle shank
HRC:50°
Heat treatment
External countersunk drill bits with hexagonal or triangular shanks typically include the following features:
1. CR12MOV.
2. Hexagonal or triangular shank
3. Countersinking and Deburring
4. Multi-flute design
5. Wide range of uses

With material applications in mind, Shanghai Easydrill Industrial Co.,Ltd, long a leader in high speed steel, cobalt, and carbide drill bits for metal, features a complete line of drill bits and hole cutting solutions for metal, wood, concrete, masonry,glass and other surfaces. Drilling, hole cutting, reaming, countersinking, tapping, milling, sawing, and deburring are comprehensively covered with Easydrill.
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