Spade drill

Details Spade drill Spade drill

1977-10-06

1978-10-17

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

408228, 408223, B23B 3144, B23B 5100

Patent

active

041206010

ABSTRACT:
A spade drill characterized in that the slotted blade clamping end of the holder has oppositely beveled end surfaces which are perpendicular to the respective side faces of the blade and which are at an angle less than the angle of the respective cutting edges of the blade to define convergent passages of right angle cross section for funneling or tracking chips to diametrically opposite obtuse angle cross section longitudinal grooves in the holder.

REFERENCES:
patent: 3776656 (1973-12-01), Benjamin
patent: 3966350 (1976-06-01), Benjamin
patent: 4040764 (1977-08-01), Baturka

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-373180