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  • Technicolour Tools

    Someone here offshore recently ordered cobalt drillbits from Westwood - these turned up:

    http://img.photobucket.com/albums/10...t/Drillbit.jpg

    Pretty, eh?

    Haven't tried them yet - I'll need to find my sunglasses! Amazing what the Chinese are coming out with now.

    Ian
    All of the gear, no idea...

  • #2
    I have seen them in the local Canadian Tire Store. I'll be interested to hear what you think of them once you give them a try.
    To invent, you need a good imagination - and a pile of junk. Thomas A. Edison

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    • #3
      That is a pretty drill! I like the look of Titanium nitride coatings. I have a pocket knife that is entirely coated with it. Very cool looking and very durable.

      Let us know how well it lasts!

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      • #4
        I'll nip down to the workshop and give them a try, and I'll let you know how they work.

        What's all this about grinding wheels - I look this morning, and there are about 16 new posts on them. Did I miss something?

        And in case the drills go blunt, do any members of the group know where I can buy a nice grinding wheel to sharpen Chinese drills :-) ?

        Ian
        All of the gear, no idea...

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        • #5
          Right - I just had a go with the pretty looking drills - I drilled 100 3/8" holes through a lump of 1" square key steel, as hard and as fast as I could. Not sure what the spindle speed was, but it was about twice what I'd normally use. The chips were flying out well past blue, and I wasn't using any kind of coolant or lube.

          The drill had no trouble - it still feels as sharp as a new one from the same packet (once it cooled off...) - it hasn't even lost its nice colouring.

          I have no idea how much cobalt is in the drills (it may be like the 'half chicken, half horsemeat' sausages - 1/2 a chicken & 1/2 a horse go into the mincer). However, as far as I'm concerned, they work just fine.

          Ian
          All of the gear, no idea...

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