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Speedbor Max is the fastest Speedbor. Tri flute design for faster chip ejection. There are 3 cutting edges for added durability and the full screw tip allows the bit to self feed for easier pull through. 1/4'' quick change hex shank prevents slipping in drill chucks and bit extensions. Fits all standard quick change chucks and adapters.
From the Manufacturer
The Irwin Tools 3041014- 9/16" X 6" SPEEDBOR MAX Drill Bit is the Fastest Speedbor spade bit ever. Tri-Flute design for faster chip ejection. Cutting spurs have 3 cutting edges for added durability. Full screw tip allows bit to self feed. Grooved hex shank prevents slipping in drill chuck or bit extension. Fits all standard 1/4" quick change chucks.
Joe
Reviewed in the United States on January 12, 2025
This thing really is fast. It'll pull itself deep before you know it then fight you to come out. Great product.
Chris
Reviewed in Canada on June 25, 2024
Used to spade bits. This is far superior!Delivery driver tossed it at the door of a business instead of following instructions to leave at building reception. Luckily I was only the 100th person to walk by.Bit- 10/10Delivery- 4/10 (I still got it).Delivery driver- 1/10.
Fred J Miller Jr
Reviewed in the United States on June 7, 2023
did an excellent job of drilling numerous holes. Was very easy to use and held up to a lot of drilling.
Rami
Reviewed in the United States on July 30, 2020
Installed a peephole on my fiberglass door with this bit. The bit did dull after one use, which is to be expected, as it's designed for wood. It slipped a bit in my drill's chuck, but then again, maybe it's just the chuck, not the bit itself at fault. Make sure to drill a pilot hole (I used 1/8" twist bit) first, then drill each side of hole until you make it through for your peephole. Overall, pleased with results.
Sara
Reviewed in the United States on February 14, 2020
I bought this drill bit to install a peephole in my front door. It did so without any problem. I did notice that the exit hole wasn't quite as clean as the entry hole. The drill hole was covered by the edge of the peephole and it wasn't an issue but it may help you in deciding which side of the door to drill from.
David
Reviewed in the United States on May 4, 2019
I bought this to put a hole in my front door so I could install a peephole viewer. It did the trick. Worth the money.
SuzyQT
Reviewed in the United States on November 12, 2018
Worked perfectly. Note: This bit is intended for use on wood only, as indicated on the packaging. However, it worked just fine on my fiberglass door which was my only reason for buying it. I needed the exact size for installing a peephole and other reviewers indicated it should be fine for that. The bit still seems to be in perfect shape, so of course I’ll add it to my toolbox, but I don’t have another intended use for it so I wanted to get something as cheap as I could since it maybe a one time use for me
R. Kaylor
Reviewed in the United States on September 29, 2014
The smaller sizes of these are awesome compared to a regular spade bit or big spiral bit. Used these while building a large playset for the kiddo. Easy to use, doesn't overtax my drills. Gives a nice hole and the threaded tip helps pull it along. The larger sizes (> 1"), take a lot of torque and I stick with a spade bit or a hole saw.
Sleepy Dad
Reviewed in the United States on May 6, 2012
I bought this to drill long deep straight holes. It does cut easily and fast. However, I found it difficult to drill a straight hole for any amount of length. The bit likes to curve once the threading is deeper than the hole edge. I ended up using an auger bit with much better luck. So, if the holes you are drilling are no deeper than the threads you should be fine. If you plan on going deep, go for an auger bit instead.
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