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US 5,649,794 AGranted
Drill
AssigneeMapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
InventorsDieter Kress, Friedrich Haberle
Life of this patent
Estimating the term…
Abstract
A drill including a bit having an extension received in and axially extending groove formed in the end face of the drill base body, a side cutting edge projecting beyond the base body circumference, and two active end cutting edges projecting beyond the end face of the base body, with the drill further including clamping elements for securing the bit extension in the base body groove with a possibility of radial adjustment.
Claims16
A drill, comprising:
- a base body having an end face and an axially extending groove formed in the end face;
- a bit having an extension received in the axially extending groove, a side cutting edge projecting beyond a circumference of the base body, and two active end cutting edges projecting beyond the end face of the base body;
- and
- clamping means for radially adjustable securing the bit extension in the base body groove,
- wherein the bit extension has opposite active surfaces, and the clamping means comprises at least one tightening body arranged in the base body engaging a respective one of the active surfaces of the bit extension for securing the bit extension in the groove, and means for displacing the tightening body relative to the bit extension for effecting radial adjustment of the bit.
2 more elements
Dependencies are inferred from the claim text.