I was at the world of wheels car show last night and a guy was there selling these drill bits. They look like masonry bits but they drill anything and are garaunteed for life. I was wondering if anyone has heard of them or used them? Www.millner tools.com
Millner-haufen drill bits
- Thread starter timmy p
- Start date
digitalbilly
Member
- Joined
- Mar 1, 2022
- Messages
- 7
I have seen these but have no experience in them look very similar to https://rodmandrill.com/
their bits grind instead of slicing so that's how they work the coolest part of the car show. but I don't know anyone with real hands-on experience
their bits grind instead of slicing so that's how they work the coolest part of the car show. but I don't know anyone with real hands-on experience
WWheeler
Well-known member
I don't recall if I'd heard of them before. Watching their promotional video they seem like they'd be worth it, but also worth noting they say they are only for use in corded drills and by their examples the speed should vary by the material being drilled.
neophyte
Well-known member
“The key to using our multipurpose drill bits is to use them in a High Speed Corded drill. A Cordless drill is going to be insufficient, do to its low RPMs.”
Ot would be nice if shills selling “Miracle” “Infomercial” type products, even pretended to have an understanding of tools and tool specs.
Carbide drill bits usually work better at high RPMs( as do Cobalt, at least judging by the specs from some industrial drill bit manufacturers)
Heat really isn’t an issue with carbide, so the heat generated by high drilling speed isn’t an issue, and the higher RPM limits the bite depth the drill bit takes, which is necessary, to help prevent fracturing of the carbide( or Cobalt HSS alloys)
I presume the corded drill being used operates at around 2800 RPMs which is somewhat standard nowadays for drills with 3/8” drill chucks.
There are also drills that operate at around 4000 RPMs which are usually designated as 1/4” drills, although they sometimes also have 3/8” chucks.
These are no load RPM speeds, and the drills slow when actually under load.
The “size” rating was usually based on the hole drilling capacity for mild steel, but that’s sort of an old measurement spec power tool manufacturers still use, and which was mostly geared towards corded single speed drills.
As for cordless drills, a bunch of different manufacturers make cordless drills with high speed settings, and sometimes three or four gears.
This includes Fein and Festool, and likely some other manufacturers as well, and some cordless screwguns might be useable at high speeds as well with an adapter chuck.
The cordless drill bit in the video might just be incorrect information.
Also, a lot of people purchase 1/2” drills, which usually run at around 850 RPM, so would also be inappropriate, and no mention is made of corded drills with more than one speed.
Actually listing optimal RPM would be useful.
Secondly,
I presume these are “standard” carbide tipped “multipurpose” drill bits, and if so, these have existed for at least a couple decades or more.
Artu-USA has been selling bits like these for decades, and claim to be “The Original multipurpose drill bit”
I have no clue if that is true or not.
Artu sells different types of drill bits, at least nowadays.
The “USA” part of their name simply refers to offices in the USA as far as I can tell.
The older Artu multipurpose drill bits were made in Denmark from what I’ve read, and the current ones may be made in China, although I’m not certain.
I presume whoever made the drill bits also made carbide masonry drill bits.
www.artu.com
Other than Artu, there’s Bad Dog Tools.
Bad Dog has been selling carbide tipped multipurpose drill bits for at least a decade or longer, although I’m not sure how much longer.
baddogtools.com
Bosch now sells carbide tipped multipurpose drill bits. Some sets of the Bosch bits I’ve seen were made in Germany, and others in China.
You used to be able to buy them at both Home Depot and Lowes. I’m not sure if Lowes still carries the Bosch sets.
Ace Tool might carry them.
The major issue with the Bosch bits is a smaller number of bit sizes available.
Artu and Bad Dog have more sizes, which may matter depending on what your using the bits for.
The major advantage to this type of drill bit is drilling hardened metals at an “affordable” price.
There are drill bits specifically made for hardened steel such as armored plate, but those are a specialty item, and very expensive, and also likely need to be used in a drill press pr mag drill.
I have no clue whether one brand on multipurpose drill bit is better than another, or how good the Millner Haufen bits might be.
Ot would be nice if shills selling “Miracle” “Infomercial” type products, even pretended to have an understanding of tools and tool specs.
Carbide drill bits usually work better at high RPMs( as do Cobalt, at least judging by the specs from some industrial drill bit manufacturers)
Heat really isn’t an issue with carbide, so the heat generated by high drilling speed isn’t an issue, and the higher RPM limits the bite depth the drill bit takes, which is necessary, to help prevent fracturing of the carbide( or Cobalt HSS alloys)
I presume the corded drill being used operates at around 2800 RPMs which is somewhat standard nowadays for drills with 3/8” drill chucks.
There are also drills that operate at around 4000 RPMs which are usually designated as 1/4” drills, although they sometimes also have 3/8” chucks.
These are no load RPM speeds, and the drills slow when actually under load.
The “size” rating was usually based on the hole drilling capacity for mild steel, but that’s sort of an old measurement spec power tool manufacturers still use, and which was mostly geared towards corded single speed drills.
As for cordless drills, a bunch of different manufacturers make cordless drills with high speed settings, and sometimes three or four gears.
This includes Fein and Festool, and likely some other manufacturers as well, and some cordless screwguns might be useable at high speeds as well with an adapter chuck.
The cordless drill bit in the video might just be incorrect information.
Also, a lot of people purchase 1/2” drills, which usually run at around 850 RPM, so would also be inappropriate, and no mention is made of corded drills with more than one speed.
Actually listing optimal RPM would be useful.
Secondly,
I presume these are “standard” carbide tipped “multipurpose” drill bits, and if so, these have existed for at least a couple decades or more.
Artu-USA has been selling bits like these for decades, and claim to be “The Original multipurpose drill bit”
I have no clue if that is true or not.
Artu sells different types of drill bits, at least nowadays.
The “USA” part of their name simply refers to offices in the USA as far as I can tell.
The older Artu multipurpose drill bits were made in Denmark from what I’ve read, and the current ones may be made in China, although I’m not certain.
I presume whoever made the drill bits also made carbide masonry drill bits.
ARTU®
ARTU-USA, Inc. is a wholesale distributor of Industrial quality drill bits and cutting tools, founded in 1989.
www.artu.com
Other than Artu, there’s Bad Dog Tools.
Bad Dog has been selling carbide tipped multipurpose drill bits for at least a decade or longer, although I’m not sure how much longer.
Bad Dog Drill Bits – All-Purpose, Sheet Metal & Carbide Burrs | USA Made
Explore all Bad Dog drill bits—built to drill metal, wood, tile, and more. From multipurpose to sheet metal bits, burrs, and drill wax—all USA made and guaranteed for life.
baddogtools.com
Bosch now sells carbide tipped multipurpose drill bits. Some sets of the Bosch bits I’ve seen were made in Germany, and others in China.
You used to be able to buy them at both Home Depot and Lowes. I’m not sure if Lowes still carries the Bosch sets.
Ace Tool might carry them.
The major issue with the Bosch bits is a smaller number of bit sizes available.
Artu and Bad Dog have more sizes, which may matter depending on what your using the bits for.
The major advantage to this type of drill bit is drilling hardened metals at an “affordable” price.
There are drill bits specifically made for hardened steel such as armored plate, but those are a specialty item, and very expensive, and also likely need to be used in a drill press pr mag drill.
I have no clue whether one brand on multipurpose drill bit is better than another, or how good the Millner Haufen bits might be.
digitalbilly
Member
- Joined
- Mar 1, 2022
- Messages
- 7
thanks for all this info it sure looks like they're all about the same. but heavy so infomercial-type commercials. which does not make it look appealing to me unless I run in to someone who has some real-world hands-on experience.“The key to using our multipurpose drill bits is to use them in a High Speed Corded drill. A Cordless drill is going to be insufficient, do to its low RPMs.”
Ot would be nice if shills selling “Miracle” “Infomercial” type products, even pretended to have an understanding of tools and tool specs.
Carbide drill bits usually work better at high RPMs( as do Cobalt, at least judging by the specs from some industrial drill bit manufacturers)
Heat really isn’t an issue with carbide, so the heat generated by high drilling speed isn’t an issue, and the higher RPM limits the bite depth the drill bit takes, which is necessary, to help prevent fracturing of the carbide( or Cobalt HSS alloys)
I presume the corded drill being used operates at around 2800 RPMs which is somewhat standard nowadays for drills with 3/8” drill chucks.
There are also drills that operate at around 4000 RPMs which are usually designated as 1/4” drills, although they sometimes also have 3/8” chucks.
These are no load RPM speeds, and the drills slow when actually under load.
The “size” rating was usually based on the hole drilling capacity for mild steel, but that’s sort of an old measurement spec power tool manufacturers still use, and which was mostly geared towards corded single speed drills.
As for cordless drills, a bunch of different manufacturers make cordless drills with high speed settings, and sometimes three or four gears.
This includes Fein and Festool, and likely some other manufacturers as well, and some cordless screwguns might be useable at high speeds as well with an adapter chuck.
The cordless drill bit in the video might just be incorrect information.
Also, a lot of people purchase 1/2” drills, which usually run at around 850 RPM, so would also be inappropriate, and no mention is made of corded drills with more than one speed.
Actually listing optimal RPM would be useful.
Secondly,
I presume these are “standard” carbide tipped “multipurpose” drill bits, and if so, these have existed for at least a couple decades or more.
Artu-USA has been selling bits like these for decades, and claim to be “The Original multipurpose drill bit”
I have no clue if that is true or not.
Artu sells different types of drill bits, at least nowadays.
The “USA” part of their name simply refers to offices in the USA as far as I can tell.
The older Artu multipurpose drill bits were made in Denmark from what I’ve read, and the current ones may be made in China, although I’m not certain.
I presume whoever made the drill bits also made carbide masonry drill bits.
ARTU®
ARTU-USA, Inc. is a wholesale distributor of Industrial quality drill bits and cutting tools, founded in 1989.
Other than Artu, there’s Bad Dog Tools.
Bad Dog has been selling carbide tipped multipurpose drill bits for at least a decade or longer, although I’m not sure how much longer.
Bad Dog Drill Bits – All-Purpose, Sheet Metal & Carbide Burrs | USA Made
Explore all Bad Dog drill bits—built to drill metal, wood, tile, and more. From multipurpose to sheet metal bits, burrs, and drill wax—all USA made and guaranteed for life.
Bosch now sells carbide tipped multipurpose drill bits. Some sets of the Bosch bits I’ve seen were made in Germany, and others in China.
You used to be able to buy them at both Home Depot and Lowes. I’m not sure if Lowes still carries the Bosch sets.
Ace Tool might carry them.
The major issue with the Bosch bits is a smaller number of bit sizes available.
Artu and Bad Dog have more sizes, which may matter depending on what your using the bits for.
The major advantage to this type of drill bit is drilling hardened metals at an “affordable” price.
There are drill bits specifically made for hardened steel such as armored plate, but those are a specialty item, and very expensive, and also likely need to be used in a drill press pr mag drill.
I have no clue whether one brand on multipurpose drill bit is better than another, or how good the Millner Haufen bits might be.
me personally id be leaning towards norsman drill bits just like the Mac branded ones http://www.norsemandrill.com/Vortex-Point-Mechanics.php