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Features
- Used by plumbers, electricians and other tradesmen for boring holes for pipe and conduit in wood
- Outlining spurs accurately define hole diameter
- Threaded screw point pulls the bit into the work providing a fast, easy to use self feeding action
- Heavy duty 1/2" shanks have 3 milled flats for secured gripping by drill chuck
- 3-5/8" & 4-5/8" diameter bits feature double chip lifters
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