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Domain: mscdirect.com
Stories and comments across the archive that link to mscdirect.com.
Comments · 10
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Re:Actions speak louder than words.
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Re:More than theft
Wrong in every possible way.
You can not put a 40 amp breaker on a line with a 10 amp outlet. It is illegal and dangerous. Normal outlets, are 10 amp outlets. $100 says you've never used an outlet capable of carrying 40 amps other than your washer/drawer/stove. My shitty 30 year old fridge is a 30amp. I doubt you could point one out in a line up without me telling you first.
Sure, you can physically do it, if your a moron too stupid to be playing around in the electrical box in the first place. You'll probably be electrocuted due to your own stupidity pretty quickly with that kind of ignorance.
A 10 amp breaker will easily blow at 8 if its got any age on it, they are designed to failSAFE not carry more than intended. Yes, they may be slow acting, but you are pushing a 10 amp breaker if you put a continuous 8amp draw on it. Its perfectly within spec, but safety margins are going to cause it to blow sooner rather than later.
Outlets have to match breakers.
A 50, 30, 20 and 10 amp outlet ALL look different. Only the a plug designed for a 10 amp outlet can be plugged into a 20 amp outlet, all others are intentionally incompatible with each other. You can not plug a 40 amp plug into a 30 amp outlet, or a 30 amp plug into 20 or 10 amp outlet. You can't even plug a 20 amp plug into a 10 amp outlet. They are designed to keep morons like you from burning your houses down because you're dumb ass does something like swap out a breaker. With a 40 amp breaker, you would be using a 50 amp outlet as there isn't a 40 amp outlet.
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Re:More than theft
Wrong in every possible way.
You can not put a 40 amp breaker on a line with a 10 amp outlet. It is illegal and dangerous. Normal outlets, are 10 amp outlets. $100 says you've never used an outlet capable of carrying 40 amps other than your washer/drawer/stove. My shitty 30 year old fridge is a 30amp. I doubt you could point one out in a line up without me telling you first.
Sure, you can physically do it, if your a moron too stupid to be playing around in the electrical box in the first place. You'll probably be electrocuted due to your own stupidity pretty quickly with that kind of ignorance.
A 10 amp breaker will easily blow at 8 if its got any age on it, they are designed to failSAFE not carry more than intended. Yes, they may be slow acting, but you are pushing a 10 amp breaker if you put a continuous 8amp draw on it. Its perfectly within spec, but safety margins are going to cause it to blow sooner rather than later.
Outlets have to match breakers.
A 50, 30, 20 and 10 amp outlet ALL look different. Only the a plug designed for a 10 amp outlet can be plugged into a 20 amp outlet, all others are intentionally incompatible with each other. You can not plug a 40 amp plug into a 30 amp outlet, or a 30 amp plug into 20 or 10 amp outlet. You can't even plug a 20 amp plug into a 10 amp outlet. They are designed to keep morons like you from burning your houses down because you're dumb ass does something like swap out a breaker. With a 40 amp breaker, you would be using a 50 amp outlet as there isn't a 40 amp outlet.
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Re:More than theft
Wrong in every possible way.
You can not put a 40 amp breaker on a line with a 10 amp outlet. It is illegal and dangerous. Normal outlets, are 10 amp outlets. $100 says you've never used an outlet capable of carrying 40 amps other than your washer/drawer/stove. My shitty 30 year old fridge is a 30amp. I doubt you could point one out in a line up without me telling you first.
Sure, you can physically do it, if your a moron too stupid to be playing around in the electrical box in the first place. You'll probably be electrocuted due to your own stupidity pretty quickly with that kind of ignorance.
A 10 amp breaker will easily blow at 8 if its got any age on it, they are designed to failSAFE not carry more than intended. Yes, they may be slow acting, but you are pushing a 10 amp breaker if you put a continuous 8amp draw on it. Its perfectly within spec, but safety margins are going to cause it to blow sooner rather than later.
Outlets have to match breakers.
A 50, 30, 20 and 10 amp outlet ALL look different. Only the a plug designed for a 10 amp outlet can be plugged into a 20 amp outlet, all others are intentionally incompatible with each other. You can not plug a 40 amp plug into a 30 amp outlet, or a 30 amp plug into 20 or 10 amp outlet. You can't even plug a 20 amp plug into a 10 amp outlet. They are designed to keep morons like you from burning your houses down because you're dumb ass does something like swap out a breaker. With a 40 amp breaker, you would be using a 50 amp outlet as there isn't a 40 amp outlet.
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Re:More than theft
Wrong in every possible way.
You can not put a 40 amp breaker on a line with a 10 amp outlet. It is illegal and dangerous. Normal outlets, are 10 amp outlets. $100 says you've never used an outlet capable of carrying 40 amps other than your washer/drawer/stove. My shitty 30 year old fridge is a 30amp. I doubt you could point one out in a line up without me telling you first.
Sure, you can physically do it, if your a moron too stupid to be playing around in the electrical box in the first place. You'll probably be electrocuted due to your own stupidity pretty quickly with that kind of ignorance.
A 10 amp breaker will easily blow at 8 if its got any age on it, they are designed to failSAFE not carry more than intended. Yes, they may be slow acting, but you are pushing a 10 amp breaker if you put a continuous 8amp draw on it. Its perfectly within spec, but safety margins are going to cause it to blow sooner rather than later.
Outlets have to match breakers.
A 50, 30, 20 and 10 amp outlet ALL look different. Only the a plug designed for a 10 amp outlet can be plugged into a 20 amp outlet, all others are intentionally incompatible with each other. You can not plug a 40 amp plug into a 30 amp outlet, or a 30 amp plug into 20 or 10 amp outlet. You can't even plug a 20 amp plug into a 10 amp outlet. They are designed to keep morons like you from burning your houses down because you're dumb ass does something like swap out a breaker. With a 40 amp breaker, you would be using a 50 amp outlet as there isn't a 40 amp outlet.
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Re:I agree. Bad math and bad physics in the articl
There is already grit mixed in with Arctic Silver. Large enough to feel.
What I'm wondering about is whether this stuff is any different than using readily available diamond compound from MSC for 15 bucks a 5gm syringe.
http://www1.mscdirect.com/CGI/GSDRVSM?PACACHE=000000104110495
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BMO -
Re:The Mother of all Supply Stores
And actually their website is perfectly constructed. And very easy to use. They also provide a lot of information about how to design stuff. Superb customer service. Super low shipping charge. If you are lucky, they may also send you a copy of their catalog. You can also try MSC, or grainger. But if i can find things I need from McMaster-Carr, I won't try any others.
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Re:Bah
"The most typical test of hardness is attempting to scratch a material. (To measure a material's hardness on the Mohs scale, essentially a series of scratch tests are performed, and a material's place on the Mohs scale was determined by what it could scratch vs. what would scratch it.)"
In the machining world and other places, where more accuracy is needed, "hardness" is defined as "resistance to penetration" or "resistance to plastic deformation, usually by indentation" (Metals Handbook) as in a diamond or ball bearing is placed upon the material and then a force is applied. The depth into the material or width of the mark is measured and matched to a scale (Rockwell, Brinell, Vickers, Knoop etc).
More than what most people want to know about hardness:
http://www.calce.umd.edu/general/Facilities/Hardne ss_ad_.htm
Testing using Vickers, Knoop, Rockwell, and Brinell is much more accurate than the Mohs scale method, but there are file sets you can buy that will measure hardness in the same way as the Mohs scale, for portability reasons.
http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=175861 9&PMT4NO=17662942
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BMO -
Re:My vote goes to...
MrResistor said:
At first glance many will disagree, and likely every one of them will have no experience with McMaster-Carr. The thing you have to realize is that their printed catalog is about 3500 pages, and they stock over 400,000 items, and this site incorporates all that and more. I have to say this is hands down the most usable e-commerce site I've ever had to deal with, putting many sites with far fewer items to shame.
To which I say, "Amen brother!"
For those who want a comparison to an industrial supplier who has a not so intuitive website, Manhattan Supply Company
McMaster may sell some items at a higher price, but the ease of finding those items makes the price more than worthwhile.
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This is new?Unless I missed something in the article, this doesn't seem all that new. CBN has been used in the machining field for a number of years in various forms. It has been plated onto conventional cutting tools such as drills, milling cutters, and lathe tools to increase wear resistance, likewise with diamond coatings. It also finds widespread use in precision grinding. In fact, in some applications CBN outperforms diamond grinding wheels. Not so much that it is better than diamond, only it is less expensive to produce in larger grain sizes required for cutting softer materials to resist clogging. By the nature of industrial diamond manufacture, it is difficult to make diamond "dust" in larger grains. In an ordinary application, you would cut a material with a harder material; either a harder steel or carbide or an abrasive. Cutting the hardest material known to man obviously presents challenges. Imagine cutting down a tree with a wooden saw and, well, you get the picture.
In grinding applications, CBN and diamond wheels are produced basicly the same way. Either a metallic or plastic wheel is coated with a layer of CBN or diamond at it's working surface, and usually bonded with a rubber, plastic, or epoxy material giving a usable life in most applications of 1/8 to 1/2 inch of wheel wear before the abrasive material is exhausted and the wheel is bare. There are, of course, exceptions to all of these guidelines for special applications etc. Wheels are usually dressed (flattened or shaped) with a special stone or Norbide (tm) stick, basicly an extremely hard, brittle peice of carbide that quickly accelerates the wear of the bonding agent. Other coating methods are used on HSS and carbide cutting tools, such as electoplating and vapor deposition. The coatings work in several ways to protect the cutter, direcly and indirectly. The high thermal conductivity of both materials quickly dissipate heat from the tooth, as well as providing sort of a lubricant that also has the effect of creating less heat. They also decrease physical wear on the tool, allowing it to run for longer periods without loosing accuracy, cut more aggressively, or cut tougher materials.
There are many other advantages (and some disadvantages) of CBN, but overall it has found a rather large niche in metalcutting. MSC Industrial Supply has a large selection of CBN and diamond products, just type "CBN" in the quick search field and check out some of the tools that CBN has been used on for years.
