NEW PATENT APPLICATION APPROVED

Super Clean, D4S style!  New patent application approved!

Our D4S Cut is a new cut style.  This cut type has the following advantages:

1. CLEAN! Chips run towards one direction

2. SAFE!  Shaft of bit goes inside the collet instead of being pulled out.

3. Extra Function! With teeth on radius rim.

4. No Hurt! Radius rim, no sharp edge, no hurt.

5. Stable! Sharp, stable and durable at high RPM

The core invention point of the patent we apply for:  The anti-helical structure of the main cutting teeth.

Any change in the shape and the coarseness of the bits which with our anti-helical structure of the main cutting teeth shall be covered by this patent,

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Post time: Dec-22-2020