Drill bit body and its end

Abstract

1. The name of the product of this design: drill bit tube body and its end portion. 2. Purpose of the product of this design: Designs 1 to 3 are drill bit tube bodies, which are used as drill bits after welding the cutter teeth; designs 4 to 9 are the ends of the drill bit tube bodies, which are used for welding the cutter teeth. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 4 Stereoscopic Diagram 1. 5. Designate Design 1 as the base design. 6. Other circumstances that require explanation: Designs 1 to 3 request protection for the entire product; Designs 4 to 9 request protection for the portion not covered by the red translucent block.

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