Bosch Daredevil DSB5005 7-Piece Spade Bit Set With Extension
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- Features a full cone threaded tip for fast and effortless drilling
- Contoured Paddle for Fast Chip Removal
- Hex Shank Power Groove to Reduce Slippage
- Spur and Reamer Tips for cleaner holes
- Provides a Cleaner Hole Quality with Reduced Breakout
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Bosch DareDevil Spade Bits offer the industry's leading performance over any other spade bit available today. The DareDevil was designed to answer the needs of professional users in terms of speed, ease of use and hole quality. The DareDevil is the fastest spade bit in the industry, provides smooth and effortless drilling, and produces the cleanest hole. A first for Spades, the full cone threaded tip provides the speed needed to drill faster and it pulls the bit through the material with less effort and vibration than other spade bits.
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Most Helpful Customer Reviews on Amazon.com (beta)
The tips are threaded to get the bit doing and keep drawing it in, like a screw.
The cutting surface is sharp and double ground as opposed to just a flat angle. And since the cutting tips are sharp when it comes out the other side it comes out clean without marring the exit surface.
The edges are also cutting edges, so if you angle the spade, it will just angle the hole, as opposed to just binding up like irwins will. And that has the added benefit of making a clean hole.
Also the spades have a wave in them. It feeds wood chips up and out so you don't get sawdust impeding your drill speed and probably adds strength so torque doesn't warp it.
The extension is great, and it's the main reason I bought this set. It lets you go through a foot of wood for a conduit. It locks bits in with little screws you tighten with a hex wrench, and there's no wiggle which I like.
Hope that helps!
You need a screw driver to use the externder bit which is annoying. Would be much better if one could just snap a bit into the extender.
The first area of improvement is the tapered screw that pulls the bit into the wood -- just like the old augur bits.
The second improvement is the pointed spurs that do the actual cutting -- so the big spade surface is used to pop out the material that is already cut loose.
The third improvement was a pleasant surprise for me. The spade flutes have a built-in curve, which feeds the cut chips up and out of the hole.
You will experience two or three useful advantages.
First, the hole sides and the exit are clean.
Second, you don't have to lean on your drill -- easy to use!
Third, these bits will surely lessen the stress on your drill. I have three drills: one is an industrial-strength 120V Milwaukee. The second is an 18V DeWalt. These have industrial-strength bearings. The third is just 14.4V, and is supposed to have great bearings -- but who knows? I used this last drill for a couple of large holes. No problems!
If you happen to have a homeowner's drill, you should get these bits right away.
Why do I urge you to get yours now? It's because I have seen so many products take a jump in price once they become popular.
I used the 1" spade bit and extender to drill through 6x12 cedar beams. The bit sets cleanly in the center of the mark with no drift and pulls through the wood, just like it's supposed to. I'll update this when I've used them more heavily.
UPDATE: I've used these bits on a couple pieces of furniture and they did a pretty good job. I like the pilot point, it sets the bit very nicely and has good pull through.
UPDATE; I've used these on a new construction electrical job now and they're great. The screw-style pilot point pulls the bit through the wood. You can push if you want, but you don't have to. Outstanding innovation.