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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Is this Cobalt or HSS?
I'm looking at a Regal-Beloit end mill, 3/4" dia. M-7
It is described as Cobalt but, when I try a search, it shows it to be HSS. Which is correct? TIA Lewis. ***** |
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#2
Posted to rec.crafts.metalworking
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Is this Cobalt or HSS?
On Fri, 6 Mar 2009 11:38:18 -0800 (PST), "
wrote: I'm looking at a Regal-Beloit end mill, 3/4" dia. M-7 It is described as Cobalt but, when I try a search, it shows it to be HSS. Which is correct? M7 is a high speed steel -- I don't believe it contains any cobalt. M42 is probably the most common cobalt HSS. -- Ned Simmons |
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#3
Posted to rec.crafts.metalworking
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Is this Cobalt or HSS?
wrote in message ... I'm looking at a Regal-Beloit end mill, 3/4" dia. M-7 It is described as Cobalt but, when I try a search, it shows it to be HSS. Which is correct? TIA Lewis. ***** FWIW, all "cobalt" tools are actually classed as high speed steel. M42 is the most common of the "cobalt" high speed steel grades, with 8% cobalt. You'll also see M35 (5% cobalt), and many of the high-end proprietary grades contain various amounts of cobalt. M7 is a tough HSS with good overall properties, often chosen for use in portable industrial drills because it will tolerate some off-axis loads and rough handling. It contains no cobalt. -- Ed Huntress |
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#4
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Is this Cobalt or HSS?
On Mar 6, 2:45*pm, "Ed Huntress" wrote:
wrote in message ... I'm looking at a Regal-Beloit end mill, 3/4" dia. M-7 It is described as Cobalt but, when I try a search, it shows it to be HSS. Which is correct? TIA Lewis. ***** FWIW, all "cobalt" tools are actually classed as high speed steel. M42 is the most common of the "cobalt" high speed steel grades, with 8% cobalt. You'll also see M35 (5% cobalt), and many of the high-end proprietary grades contain various amounts of cobalt. M7 is a tough HSS with good overall properties, often chosen for use in portable industrial drills because it will tolerate some off-axis loads and rough handling. It contains no cobalt. -- Ed Huntress Thanks for the help here, gentlemen, I appreciate it. Kind regards. Lewis. ***** |
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