Professional Tool Reviews for Pros


Irwin Speedbor Spade Bit Review

It’s no surprise that Irwin is a respected name in tools and especially blades and bits. They get it, and they offer an impressive array of budget-friendly products that outperform the generic alternatives nearly every time. We took on some of their current line of spade bits to see how well they’d perform in our testing and practical use. Turns out this company knows what it’s doing after all.

Irwin Speedbor Spade Bit

Irwin Speedbor Spade Bit Sports New Design, Faster Boring

With an update to the classic Irwin Speedbor spade bit, there’s a new challenger to Bosch’s Daredevil dominance. We tested them head-to-head and came away genuinely impressed.


Irwin Speedbor Spade Bit: A New Design Concept

The updated design of Irwin’s spade bit seems like a step backward at first glance. The starting point is longer with a sharper angle. Tips that point up at the edges are no longer there, favoring an edge that angles down instead.

Irwin Speedbor Spade Bit – GEN 1 VS GEN 2

The overall thickness of each bit is the same, though the hex shank portion of the shaft is longer.

Twice the Boring Speed

Irwin claims the new bits are twice as fast. We started by testing the updated 1-inch Irwin Speedbor to get some first impressions in 2x pine studs.


Irwin Speedbor Spade Bits Review

Then we put it up against its predecessor in stacked OSB. We like to use 3/4-inch subfloor simply because it’s more consistent than other lumber.

Driven by Makita’s XFD07 drill driver, the original Speedbor averaged 5.33 seconds. The updated model crushed it with a 2.31-second average. That’s more than twice as fast.

Irwin Speedbor Spade Bit OSB

Bosch Daredevil spade bits are our normal go-to choice. Their threaded tips self-feed and generally have a smoother cutting action as they bore.

Using a new 1-inch Daredevil, it pushed through with an average of 3.66 seconds, making Irwin Speedbor the new speed king.

The Bottom Line

Even though it’s faster, Irwin’s cutting experience isn’t as smooth as Bosch’s, but it’s not ridiculous, either.

Bosch’s threaded tip is also an advantage, allowing you to simply control the drill rather than actively working the bit through your material.

That said, if speed is your number one priority, the Irwin Speedbor spade bit has set the benchmark for other accessory manufacturers to chase.

Irwin Speedbor Spade Bit Sizes

  • 1/2-inch to 1 1/2-inch diameter
  • 4, 6, or 16-inch shaft lengths

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Brien

Irwin speebor bits sizes are too small

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