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+-- Forum: Concrete (/forumdisplay.php?fid=1)
+--- Forum: Moisture Measurement in Concrete (/forumdisplay.php?fid=2)
+--- Thread: creating the hole for the sensor (/showthread.php?tid=36)
creating the hole for the sensor - SDJeff - 11-08-2009 04:17 PM
Sometimes, I find drilling into concrete a a bit of a challenge depending in the slab; some slabs seem harder than others and control of the bit is more difficult. QUESTION: What factors make a hole unsuitable for testing? I've had cases where the depth was right but the sensor would not go in even using the tools and recommended methods; then, after one more (in and out) with the bit, the the sensor went in easily without much effort. If the sensor goes in too eaisly is the hole still usable?
RE: creating the hole for the sensor - Ben - 11-09-2009 04:39 PM
I'm wondering if your drill bit is worn down. My sensors are never 'easy' to put in, but I've noticed it is more difficult when I use an older bit. W hen I drill in concrete the two things my bit needs to be is: relatively new and have a pyramid tip.