“The Original” 10 foot drill bit is designed for the home owner/DIY'er. It is hand-made and hand-welded in my small shop. It ships as 3 parts – one 3’ section and two 3 ½’ sections. Using your own ¾” -1 ½” spade bit, drill through the top plates of a conventional 2”x4” interior stud wall. Then insert the 3’ section holding your spade bit into the hole. Attach one of the 3 ½’ sections by tightening the two set screws with the enclosed hex wrench. Feed the drill bit down to the cross brace. Carefully judge when the bit is vertical and centered on the cross brace. Attach your drill and bore a hole through the cross brace. Just like “drilling for oil”, attach the last 3 ½’ section and lower the bit to the bottom plate. Again vertically align the bit to the center of the plate and bore through the plate and floor system. Now you can attach the wire, cable, or pull string to the bit from under the floor and pull it into place as you remove and disassemble the bit.
Note that it is your responsibility to ensure there are no electrical wires or pipes in the wall!
Choose a location with a minimum of 39” headroom. Interior walls are preferred so you can avoid insulation. Be careful to hold onto the drill bit so it does not fall into the wall. Tighten all set screws firmly before drilling.
I suggest you add a wrap of good quality duct tape to each connection.
You can expect some amount of wobble, but it will efficiently drill a perfectly good chase for your wires.
“The Original” 10 foot drill bit uses standard spade bits. For quick-change hex spade bits, use our new model with quick-change adapters – Coming Soon!
Please note the difference in spade bits below.
Standard Spade Bit Quick-change hex spade bit
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