

Spade Bit Set (13)
Rok 36674
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Spade bits are probably the simplest drill bits for drilling in wood. Often used in construction (softwood) with portable drill, they bore holes fast but tend to wobble and vibrate because of their variable geometry. They will get dull faster if you bore in hardwood.
Made of relatively soft steel (high carbon), they are easy to customize; you can create a narrower or a tapered bit and even a special contour. Just file away equal amount on each side of the blade and make sure you restore the original clearance.
This set of classic spade bits will cope with most of your work:
At less than $2.00 per drill bit, it helps out for cheap!