Spade drill

Details Spade drill Spade drill

1976-10-26

1977-11-29

Vlachos, Leonidas

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

407 54, B23B 2716

Patent

active

040603350

ABSTRACT:
A spade drill is provided with a holder for a spade cutting blade which is clamped in a slot of the holder by means of a clamp screw. The spade cutting blade is essentially formed with a cutting surface coming to a central point and of the same shape as the first cutting surface with an abutment surface located within the spade drill holder in the clamping slot which receives the cutting surface for holding the bit in place with means in the form of a clamp located across the clamping slot to grip the spade drill bit.

REFERENCES:
patent: 1210153 (1916-12-01), Dusha et al.
patent: 2521035 (1950-09-01), Boyle
patent: 2575239 (1951-11-01), Stephens
patent: 2590053 (1952-03-01), Taylor
patent: 2945288 (1960-07-01), Berry
patent: 3076357 (1963-02-01), Benjamin et al.
patent: 3217384 (1965-11-01), Wirfelt
patent: 3831237 (1974-08-01), Gunsalus
patent: 3878905 (1975-04-01), Schaumann
patent: 3965553 (1976-06-01), Faber

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-1632206