From the original Twist Drill "one point and three edges", grinding into "three points and seven edges", when using the axial force and torque than the standard twist drill reduced 10-30%, life increased 2-3 times, efficiency increased more than 2 times, and because of the unique three top involved, can improve the centrality of drilling, improve the drilling precision
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
