B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/35, 255/68
B23B 51/02 (2006.01) B25D 17/08 (2006.01)
Patent
CA 1239040
ABSTRACT OF THE DISCLOSURE A drill bit with an axially elongated shank is suitable for use in all known conventional hand-held drilling machines. The shank is generally cylindrically shaped with axially extending first slots open at the free rear end face of the shank. Axially extending second slots are superimposed at least in part on the first slots and are spaced from the rear end face. Each second slot forms at least one shoulder face disposed transversely of the shank axis and oriented in the direction facing oppositely to the rear end face. Accordingly, the drill bit, due to its first slots, can be utilized in the chucks presently used in drilling machines and percussion drilling machines. Further, due to the second slots, the drill bit can be clamped for limited axial movement in the chucks of known hammer drills.
488235
Hunger Josef
Rumpp Gerhard
Hilti - Aktiengesellschaft
Rolston George A.
LandOfFree
Drill bit for hand-held drilling machines 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 bit for hand-held drilling machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill bit for hand-held drilling machines will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1294052