Drill

Details Drill Drill

1994-09-16

1997-09-09

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool or tool with support

408224, 408227, B23B 5100

Patent

active

056649142

ABSTRACT:
A drill comprising a holding section, a prismal section receivable by the holding section, and a top-truncated, pyramidal section which is integral with the prismal section, with the prismal section having side faces and side ridges defined by the adjoining two side faces, the top-truncated, pyramidal section having end faces which taper and coverage on the axis of rotation of the drill, end ridges which are defined by meeting of the adjoining two end faces, and a truncated surface extending across the axis of rotation and forming an angle of more than 1.degree. to less than 90.degree. with the cross-section of the prismal section. The end faces and end ridges of the pyramidal section extend from said side faces and side ridges of the prismal section, respectively. Because the apex of the drill is located out of the axis of rotation, it has enhanced cutting performance.

REFERENCES:
patent: 1072543 (1913-09-01), Whyte
patent: 2260288 (1941-10-01), Black
patent: 3121351 (1964-02-01), Mount
patent: 4440532 (1984-04-01), D'Apuzzo

Affiliated with

Also associated with

Rating

Drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-65128