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Old September 25, 2017   #262
loulac
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Join Date: Feb 2013
Location: France
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Let me add an unusual way of sharpening tungsten carbide drills used for concrete : most metal drills won’t cut very hard steel unless you buy top quality at a high price. Sharpen your concrete drill giving it the right angle for metal, you will drill your hole without spending a lot of money.
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