Irwin Speedbor MAX bits

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dusty
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Joined: Wed Nov 22, 2006 6:52 am
Location: Tucson (Wildcat Country), Arizona

Post by dusty »

claimdude wrote:Dusty,

If those were Bad Dog bits I have a set and they live up to the demo. Check this link https://www.baddogtools.com/tools/tools/multipurposedrillbits.html

Jack
I can't tell from pictures whether these are the same or not but the demo tactics are much the same. The demo that got my attention was when, after drilling steel and concrete, he drilled a 1/4" hole in a piece of hardwood and then twisted the drill around to enlarge the hole. He did this until the wood was burning and emitting a great deral of smoke; the bit was undoubtedly very, very hot. He then drilled a hole in a piece of steel.

I don't have any bits that will perform that way. Impressive even to a skeptic.
"Making Sawdust Safely"
Dusty
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bffulgham
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Posts: 459
Joined: Tue Aug 21, 2007 9:18 am
Location: Amarillo, TX area

Post by bffulgham »

dgale wrote:Those are great adapters! Add them to my wish list. What I'd really like to find is an adapter for my old "Yankee Push Drill" - I love that thing but wish I had an adapter to be able to use torx, allen, and other non-standard hex bits with it. I saw something in Fine Homebuilding a little while back where someone had a machine shop fabricate an adapter to do this but so far I haven't been able to just find such an adapter for sale…I suppose I could go the machine shop route as well but my need isn't quite that great…just wish one was readily available for sale.
Was looking at the Highland Woodworking catalog this morning. Found they have Yankee hex driver adapters on page 53. Item numbers:
161853
161854
161855
Bud F.
1998 Mark V 510 bought used 2006, Jointer, 2 Bandsaws, ca 1960 Yuba SawSmith RAS
Projects and "stuff": http://www.bfulgham.com/JAlbum/Woodworking_Index/
teacherman
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Post by teacherman »

bffulgham wrote:I was hanging a door for a daughter and son-in-law last week, and when I got ready to bore new holes for the deadbolt and lock-set, discovered I had NOT brought bits with me. So, off to bLowes we go.

I wanted to try one of the Irwin Speedbor MAX bits, so I bought a set of 3.

I needed to drill a couple of 1" holes, so I mounted up the new bit in my old Makita 12v drill. Needless to say, the cordless drill didn't have the UMPH to get the job done. So, I created a mortise the old fashioned way with a hammer and wood chisel. No big deal.

A couple of days ago, I grabbed my 1/2" corded drill, chucked up the 1" bit and found a piece of scrap 3/4" pine. I clamped the pine to a worktable and started the bit into the wood. I've never seen an auger bit drag itself through the board the way that thing did. This is one aggressive bit.

The good news: It cuts a very clean hole. Just as with any bit, back it up on the exit side, and it's clean all the way through.

The bad news: Because the bit is so aggressive, it could be a real arm breaker if you're not careful. I was using both the rear grip and the side grip on my setup, and it was a really good thing I was.

I definitely would NOT try to use this thing on anything that was turning at high speed. I successfully controlled the thing with the drill turning probably at around 75RPM.

If I needed to drill studs to pull wire, a Speedbor mounted in one of those big honking right-angle drills would be just the ticket.

When I get to make by workbench, I think it just might be the ticket to drill all of the dog holes.

I bought one of those once. My heavy cordless and my old Sprunger drill press were both overwhelmed by it. In a big drill, it would teach a Sumo wrestler how to pirouette! :D
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