Reverse chamfer and countersink tool

Details Reverse chamfer and countersink tool Reverse chamfer and countersink tool

2006-07-04

2006-07-04

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C408S014000, C408S093000, C408S110000

Reexamination Certificate

active

07070364

ABSTRACT:
A reverse chamfering and countersink stop tool allows the required diameter of a countersink in a workpiece to be maintained in areas that have limited accessibility for the user assembling a fastener to the workpiece. The tool controls the dimension required for proper installation of fasteners under such conditions. The tool can also be used for other applications that require control of the diameter of a chamfer, and allows the diameter of the chamfer/countersink to be set outside the point of use for maintaining proper tolerances. The tool utilizes a modified reverse countersink cutter that is captured inside an externally threaded adjustable stop housing. The captured cutter is movable both axially and rotationally, and is driven by a drill equipped with a pilot. The stop position of the cutter is controlled by a series of nuts that are located and threaded on the exterior of the housing.

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