A drill tip screw for exchangeable-head drills featuring a rotationally symmetric center portion and a concave-profile tapered portion for improved fastening integrity.

Patentradars sammanfattning

AB Sandvik Coromant's EP 4 775 337 A1 discloses a drill tip screw (B23B 51/00) designed to secure a replaceable drill tip to an exchangeable-head drill support body. The screw comprises a screw head at one axial end, an outer threading at the opposite end, a rotationally symmetric center portion, and a first tapered portion whose widest end is integrally connected to the center portion. The key geometric novelty lies in the axial cross-section of the tapered portion exhibiting a concave surface profile, differentiating it from conventional straight or convex tapers.

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