ROK 36674 13pc Spade Bit Set water regardless of material

regardless of material

The main shaft is laser engraved at every 1/2" and through the detents on the main shaft

With a blade length of over 14"

No Load RPM: 4

Another factor is its incredibly precise machining

ROK 36674 13pc Spade Bit Set water regardless of materialSpade 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