Combination hole saw arbor and adjustable hole cutter shaft
OwnerBruce Winter Stenmaninventor
Life of this patent
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Abstract
Systems and methods are disclosed to enhance functionality of a power drill, comprising: providing a shaft having one or more threaded sections with different diameters, wherein a pilot bit is inserted into one threaded section; and selectably converting the power drill into either: an adjustable hole cutter by inserting a bar through the shaft, wherein the bar comprises one or more holders to receive cutting blades; or a fixed size hole cutter or hole saw by converting the adjustable hole cutter for use as a hole saw or a hole cutter arbor.
Claims20
A hole cutting tool to enhance functionality of a power drill, comprising:
- a. a shaft having one or more threaded sections with different diameters, the shaft being adapted to receive a pilot bit;
- b. wherein the shaft converts the power drill into either:
- i. an adjustable hole cutter by inserting a bar through the shaft, wherein the bar comprises one or more holders to receive cutting blades;
- or
- ii. a fixed size hole cutter or hole saw by converting the adjustable hole cutter for use as a hole saw or a hole cutter arbor.
A method to enhance functionality of a power drill, comprising:
- a. providing a shaft having one or more threaded sections with different diameters, wherein a pilot bit is inserted into an end of a threaded section;
- and
- b. selectably converting the power drill into either:
- i. an adjustable hole cutter by inserting a bar through the shaft, wherein the bar comprises one or more holders to receive cutting blades;
- or
- ii. a fixed size hole cutter or hole saw by converting the adjustable hole cutter for use as a hole saw or a hole cutter arbor.
The method of claim 15, wherein the bore has a perpendicular threaded hole to permit a screw to prevent movement of the pilot bit independent of the shaft.
Dependencies are inferred from the claim text.