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  2. High-speed steel - Wikipedia

    en.wikipedia.org/wiki/High-speed_steel

    The addition of cobalt increases heat resistance, and can give a hardness up to 70 Rockwell C. [14] M35 M35 is similar to M2, but with 5% cobalt added. M35 is also known as Cobalt Steel, HSSE or HSS-E. It will cut faster and last longer than M2. [15] M42 M42 is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. [14]

  3. Drill bit - Wikipedia

    en.wikipedia.org/wiki/Drill_bit

    Twist drill bits are available in standard lengths, referred to as Stub-length or Screw-Machine-length (short), the extremely common Jobber-length (medium), and Taper-length or Long-Series (long). Most drill bits for consumer use have straight shanks. For heavy duty drilling in industry, bits with tapered shanks are sometimes used. Other types ...

  4. List of blade materials - Wikipedia

    en.wikipedia.org/wiki/List_of_blade_materials

    CPM REX 45 (HS) [50] is an 8% cobalt modification of M3 high speed steel made by the CPM process. As of September 2018, this steel was used in some limited-run production knives from Spyderco . CPM REX 54 HS [ 51 ] is a cobalt-bearing high-speed steel designed to offer an improvement in the red hardness of the popular M4 grade while maintaining ...

  5. File:2010-01-21 Craftsman Professional cobalt drill bit set ...

    en.wikipedia.org/wiki/File:2010-01-21_Craftsman...

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  6. Tool steel - Wikipedia

    en.wikipedia.org/wiki/Tool_steel

    A cold work steel used for gauges, cutting tools, woodworking tools and knives. It can be hardened to 66 HRC, typically used at 61-63 HRC. Also sold as 1.2842 and 90MnCrV8. [9] O6: 1.45% C, 1.0% Mn, 1.0% Si, 0.3% Mo: A cold work graphitic steel with outstanding resistance to metal-to-metal sliding wear and galling.

  7. 12 Valuable G.I. Joes With Salute-Worthy Price Tags - AOL

    www.aol.com/12-valuable-g-joes-salute-140848964.html

    Complete with a handful of tools, a buoy, and a scuba diving helmet, this vintage toy is sought-after by collectors. 7. 1964 G.I. Joe Prototype with First Navy Scuba Suit. thrush39 / ebay.