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Thread: Drilling Hardened Steel With Masonry Bits

  1. #1
    Supporting Member shopandmath's Avatar
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    shopandmath's Tools

    Drilling Hardened Steel With Masonry Bits

    In this video i will show you how to sharpen a masonry bit to cut harden steel
    I will demonstrate drilling into hardened steel with a cheap carbide drill bits
    Drilling Hardened Steel With Masonry Bits

  2. The Following 16 Users Say Thank You to shopandmath For This Useful Post:

    Andyt (02-27-2020), baja (02-27-2020), bigtrev8xl (03-02-2020), byates (03-02-2020), Carnel (02-27-2020), FEM2008 (03-02-2020), hegefer (02-27-2020), Jon (02-28-2020), kess (02-27-2020), Little Rabbit (03-13-2020), Murph1090 (03-01-2020), oldpastit (02-27-2020), pauladan@magtech.ca (02-25-2020), Philip Davies (02-27-2020), tsbrownie (03-15-2020), wimton (02-27-2020)

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    That was fantastic! Thank you for sharing this idea.
    Casey P

  4. The Following 2 Users Say Thank You to cfpcorp For This Useful Post:

    Inventorjt (02-27-2020), shopandmath (02-26-2020)

  5. #3
    Supporting Member shopandmath's Avatar
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    shopandmath's Tools
    thank you for taking the time to comment
    Ray

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    Good to see someone post this method with masonry bits. Years ago when I was repurposing "excavator bases" for the oil drilling industry I used masonry bits in large hand held slow speed electric drill to remove the broken off under carriage bolts, I found that new unused bits from reputable manufactures to be the best with the double "V" sharpening the best as they came. Most of these broken bolts/studs where 5/8 - 3/4 inch drilled cold, no lube just water.

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    Supporting Member Crusty's Avatar
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    Crusty's Tools
    I use Dewalt glass drilling carbide bits straight out of the package and they do a nice job drilling hardened metals.
    If you can't make it precise make it adjustable.

  8. The Following User Says Thank You to Crusty For This Useful Post:

    FEM2008 (03-02-2020)

  9. #6
    Supporting Member marksbug's Avatar
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    sharpening a carbide bit like this is no differenat then a std bit, just a diamond blade. so if you know how to sharpen a drill you just change blade to diamond.Im not impressed with his sharpening skills. and those wrenches arent hard for squat. but atleast he did give other out side of the box ideas. now how to get those masonry bits to work on good old concrete!!!

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    Thanks shopandmath! We've added your Hardened Steel Drill Bit to our Drilling and Drill Presses category,
    as well as to your builder page: shopandmath's Homemade Tools. Your receipt:




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    Masonry NOT masonary


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