FASTEST DRILL BIT For Drilling Large Holes?! (Speedbors Explained--How To Bore Large Holes Quickly!)

FASTEST DRILL BIT For Drilling Large Holes?! (Speedbors Explained--How To Bore Large Holes Quickly!)

T
The Honest Carpenter
1 Video View·Jan 12, 2023

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Hold Drills Upside Holes DRILL BIT For Drilling Large Holes?! (Speedbors Explained--How To Bore Large Holes Quickly!)

I AM NOT SPONSORED BY IRWIN OR ANY OTHER COMPANY!

I've often been asked what these chunky, blue-colored drill bits are for. Irwin Speedbors are some of the best bits on the market for drilling LARGE DIAMETER holes in wood. (I categorize this as basically any hole over 1/2", which is where most twist bits top out.)

Speedbors are tri-flute--they have three spiral channels for clearing waste wood as they bore. They also have a screw tip, spurs on the tips of the webs, and a low-friction coating.

The screw tip draws the bits into wood, and the spur tips and sharpened lips chop and gouge wood quickly. The flutes eject this waste wood in a cloud.

Speedbors, when properly use, can drill/bore through 4x material in under 5 seconds!

But, Speedbor drill bits are extremely aggressive! They're best used for framing materials, and applications where appearance doesn't matter.

They cause a good amount of blowout at the back, and the entry hole isn't that clean either.

Also, they're very powerful and sharp! So keep your free hand clear of the exit hole, and don't let the bits pull you off balance!

But, Speedbors require no predrilling, and they act as an extremly fast-working substitute for spade/paddle bits, hole saws and forstner bits.

Thanks for watching!
The Honest CarpenterCredit: The Honest Carpenter