New "domino killer" dowel guide for drills

You won't be buying standard drill bits.
The outside bits are left hand twist.

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The CMT bits, for their Boring Jig, are also right and left handed, and are solid carbide. Expensive though, ranging between $25.00 and $30.00 each.

You do have to search for them, but I’ve done it here, but when shopping note the shaft diameter and the overall length. It might not work with all fixtures.



 
The CMT bits, for their Boring Jig, are also right and left handed, and are solid carbide. Expensive though, ranging between $25.00 and $30.00 each.

You do have to search for them, but I’ve done it here, but when shopping note the shaft diameter and the overall length. It might not work with all fixtures.




Those are the typical line boring machine type bits, steel shank, carbide tips. They have 10mm shanks, a depth adjusting set screw in the end, a flat face for the attachment screw. The black/orange paint indicates rotation direction.
These same bits also work in concealed hinge boring machines, which require 8mm holes.
The usual line bore holes are 5mm or 1/4", so all 3 sizes are available easily.
 
Those are the typical line boring machine type bits, steel shank, carbide tips. They have 10mm shanks, a depth adjusting set screw in the end, a flat face for the attachment screw. The black/orange paint indicates rotation direction.
These same bits also work in concealed hinge boring machines, which require 8mm holes.
The usual line bore holes are 5mm or 1/4", so all 3 sizes are available easily.
I use them (right hand only) in my CMT dowel template, which I use with a drill adapter. It can also be used with a plunge router and a 14mm bushing. The centering drill adapter is faster than the router, but both cut clean holes. I was under the impression that the entire bit was carbide; I might be wrong on that. But a very durable bit.

I also have an edge drilling template from CMT. They are not imported to the USA. I got mine from Amazon.de (German) but it shipped from Amazon.es (Spain), It all went on my regular Amazon account. Both jigs are very efficient for cabinet boxes. I especially like the spring loaded centering bit that guarantees perpendicularity.


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Or make your own Domino killer by adding a fence to the CMT boring jig. The spacing is not adjustable and I believe it is 32mm on center. The bit diameter can be changed.


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Andrew Klein's videos come up in my Youtube feed. I noticed that in his recent "Domino Killer" videos, he is now using a corded Dewalt drill when using his jig. I guess that his cordless ones don't have enough torque to drill repeated three holes at once.

I own the same drill that I purchased when my cordless drill at the time wasn't cutting it (so to speak). It was not very expensive and does have a lot of torque.

Bob
 
Andrew Klein's videos come up in my Youtube feed. I noticed that in his recent "Domino Killer" videos, he is now using a corded Dewalt drill when using his jig. I guess that his cordless ones don't have enough torque to drill repeated three holes at once.

I own the same drill that I purchased when my cordless drill at the time wasn't cutting it (so to speak). It was not very expensive and does have a lot of torque.

Bob
Interesting...so I guess his original statement "the Trinity is powered by anyone with an 18 volt drill " is no longer valid. :unsure: Let's see what else shakes out.
 
Andrew Klein's videos come up in my Youtube feed. I noticed that in his recent "Domino Killer" videos, he is now using a corded Dewalt drill when using his jig. I guess that his cordless ones don't have enough torque to drill repeated three holes at once.

I own the same drill that I purchased when my cordless drill at the time wasn't cutting it (so to speak). It was not very expensive and does have a lot of torque.

Bob
I just took a look at that vid. There seemed to be a bit of fence wobble as he was starting that row of holes with the corded DeWalt - and it looks as though it's not very balanced and seems like he's using a lot of force to bore the holes. Makes me wonder if that leaves more room for errors.
 
I just took a look at that vid. There seemed to be a bit of fence wobble as he was starting that row of holes with the corded DeWalt - and it looks as though it's not very balanced and seems like he's using a lot of force to bore the holes. Makes me wonder if that leaves more room for errors.
Yeah the sloppy fit was pretty bad. He's made some fantastic tools in the past, and the machining and design of this unit is awesome, functionally though I think it's just not suitable for any reasonable amount of usage.
 
Yeah the sloppy fit was pretty bad. He's made some fantastic tools in the past, and the machining and design of this unit is awesome, functionally though I think it's just not suitable for any reasonable amount of usage.
I haven't watched the video, but I trust the opinions of Foggers in this thread... that said, he has built so many fantastic projects with meticulous detail that I can't fathom why this is, um, so bad. I'd say "influencer money grab" but that would get some backlash.

I mean, that Japanese video of a Domino clone... buy the plans, send them to a printer, have a fantastic Domino clone that can do dowels. Precision, too. Someday I'll get that Bambu printer; those seem really nice...
 
I haven't watched the video, but I trust the opinions of Foggers in this thread... that said, he has built so many fantastic projects with meticulous detail that I can't fathom why this is, um, so bad. I'd say "influencer money grab" but that would get some backlash.
He's done some amazingly high quality work that's just next level, but I think maybe this one just got caught out a bit by the physics of it.

I wanted a Mafell Duo Doweller for ages, and when I bought one I was a little taken aback at how much effort it took to not only just drill 2 dowel holes at once, but also the amount of effort it took to also keep it stable and square. And the cutters wore so fast too!

That experience helped me realise why multiple drilling heads like the CMT Boring Jig are usually attached to a drill/station with a lot of leverage, so you don't realise how much effort it takes.

I think a lot of people will get used to the unit and pretty much be able to make it work how they want, but I can see a lot more people using it a number of times and then giving up, especially if the drills wear fast.
 
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I haven't watched the video, but I trust the opinions of Foggers in this thread... that said, he has built so many fantastic projects with meticulous detail that I can't fathom why this is, um, so bad. I'd say "influencer money grab" but that would get some backlash.

I mean, that Japanese video of a Domino clone... buy the plans, send them to a printer, have a fantastic Domino clone that can do dowels. Precision, too. Someday I'll get that Bambu printer; those seem really nice...
Pride. He went for it and obviously underestimated the difficulty of the project .. it is not easy to admit defeat.

There is a vast space between "can be used" and "is a reliable tool" as far as these types of jigs are concerned.
I will 100% back comments by Packard earlier. The CMT kit is the way to go IF you seek to do dowelling at the small scale.

Also, as I have mentioned on the other threads, the LR32 system can be used for dowel joints cabinetry with the right setup. That is IMO the most effective path for those on the budget.
I have the big CMT jig and while it works fine, the LR32 /again, with the right setup/ is superior to it on both speed and quality and a lower cost at that.
 
Interesting...so I guess his original statement "the Trinity is powered by anyone with an 18 volt drill " is no longer valid. :unsure: Let's see what else shakes out.
Well...this is interesting, start at the 18 second time stamp. He's really trying to perform the Houdini routine on this.

 
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