Irwin Speedbor 1-1/8 in. Dia. x 5 in. L Hardened Steel Hole Cutter 1 pc.
Irwin Speedbor 1-1/8 in. Dia. x 5 in. L Hardened Steel Hole Cutter 1 pc.
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IRWIN

Irwin Speedbor 1-1/8 in. Dia. x 5 in. L Hardened Steel Hole Cutter 1 pc.

|2 ratings

Key item features

  • 1-1/8 in. size
  • 3X Cutting edges extends bit life compared to standard Irwin self-feed bits
  • Aggressive screw pitch
  • 7/16 in. quick change impact shank
Current price is $38.16
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Sold and shipped by Max Warehouse
4.429579507008216 stars out of 5, based on 10345 seller reviews(4.4)
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Showing 1-2 of 2 reviews

Dec 24, 2010
Ken Richardson
5 out of 5 stars review

Speed Bore Bits

I had to drill a 3" blind hole in a 10" oak beam, overhead and inside of a wall. You could not see what you were doing. These bits are a life saver. Make sure you have both hands on the drill though because these are the most agressive bits I have ever used. Uses a cool quick disconnect extension also. A must have for those impossible holes!

Review from irwin.com
Helpful?4WJHPW1J1GJR39925845
Sep 10, 2017
PatrickD
5 out of 5 stars review

Excellent bits, but require the power to run them.

I've used these bits extensively and am very pleased with them. They come with a replaceable tip, which I've never had to use, but the only significant advantage of competitors products is the replaceable blade leading edges. Several reviewers gave the bits poor reviews because their drills could not handle the bits. This is not an issue with the bits... it takes a ton of power to drill a 2-9/16" hole with this style bit. I used a Dewalt DWD460, and the very first time I used them it was to drill a 2-9/16" hole in a 120 year old solid oak beam 10" thick.

Review from irwin.com
Helpful?4WJHPW1J1GJR39925845