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Drilling into old VERY hard concrete - or give up and use "no nails"?
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Harry Bloomfield
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Drilling into old VERY hard concrete - or give up and use "no nails"?
Dave formulated the question :
Tungsten carbide has no magnetic properties, so I doubt that.
....and the tunsten carbide bit is attached to what material?
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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk
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