Shank of down-the-hole drill bit

Abstract

1. The name of this design product: tail handle of down-the-hole drill bit. 2. Purpose of the product of this design: A down-the-hole drill bit is a drill bit used for drilling holes in rocks. The tail handle is used to connect with the down-the-hole impactor. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other circumstances that require explanation: This design is a partial design, and the part to be protected is the caudal stalk. The part not painted green in the picture is the caudal peduncle. The A‑A section view is the section view at point A‑A in the left view. The enlarged view of part B is an enlarged view of part B in the A‑A section view.

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