Rotational Tool Bit

摘要

An improved rotational tool bit used for operational engagement with a Phillips head style fastener that has two points formed at the end of each of its four symmetrical wings and two concave side wall faces on the wing. The points can bite into the fastener and reduce the cam out effect. The design of each of the four wings places the thickest section of the wing behind the two points, aligned facing the reactionary force generated by the torque applied in rotating the fastener so as to prevent deformation of the points under load.

主权项

1. An improved rotational tool bit for operational engagement with a Phillips head style mechanical fastener comprising:
a solid linear body having a linear axis and said linear body having a first, a second and a third sequentially contiguous sections, said linear body having a proximate end on said third section and a distil end on said first section; wherein said first section is a regular hexagonal body in axial cross section, and said second section is a generally cylindrical body, and said third section is a generally truncated conical body, wherein said second and said third sections each have at least two symmetrical, evenly radially spaced wings formed thereon, each wing with two concave side walls, said wings separated by at least two symmetrical, evenly radially spaced gullies.