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2. Annular cutter - Wikipedia

   en.wikipedia.org/wiki/Annular_cutter

   An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.

3. Nominal Pipe Size - Wikipedia

   en.wikipedia.org/wiki/Nominal_Pipe_Size

   Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

4. Pitting resistance equivalent number - Wikipedia

   en.wikipedia.org/wiki/Pitting_Resistance...

   In general: the higher PREN-value, the more resistant is the stainless steel to localized pitting corrosion by chloride. PREN is frequently specified when stainless steels will be exposed to seawater or other high chloride solutions. In some instances stainless steels with PREN-values > 32 may provide useful resistance to pitting corrosion in ...

5. Sink - Wikipedia

   en.wikipedia.org/wiki/Sink

   Stainless steel sinks are widely celebrated for their durability, sleek appearance, and resistance to rust and corrosion. However, many homeowners are baffled when they spot rust stains on their stainless steel sink. [3] One disadvantage of stainless steel is that, being made of thin metal, they tend to be noisier than most other sink materials ...

6. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. 11 benefits of chia seeds from gut health to weight loss - AOL

   www.aol.com/finance/11-benefits-chia-seeds-gut...

   The key to a long life is avoiding the 'poisonous 5 P's,' says one of the world's top anti-aging experts. It's not 8 glasses a day anymore. Here's how much water you should drink each day.