Cutting by use of rotating axially moving tool – Tool or tool with support – Having stepped cutting edges
Patent
1998-07-15
2000-02-01
Pitts, Andrea L.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having stepped cutting edges
403199, B23B 5100
Patent
active
060195533
ABSTRACT:
A metal cutting drill includes a steel drill body, and a carbide insert brazed therein. The drill body includes a front face having a recess formed therein, the recess radially overlapping a longitudinal axis of the drill body. The insert is brazed in the recess and includes a plurality of spaced-apart cutting edges disposed on opposite sides of the axis. The cutting edges radially overlap during a drilling operation. One of the cutting edges projects radially outwardly beyond a side face of the head, and another of the cutting edges terminates radially inwardly of the side face.
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Bhargava Adesh
Pitts Andrea L.
Sandvik Inc.
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