What Drill Bit to Use? – How to Drill Steel, Wood and
2017-7-26 · They are tungsten carbide bit and diamond hole saw. The tungsten carbide bits have a wide range of use on brick, concrete and masonry blocks. They are available in sizes from just under 1/4 inches (5 mm) to 1 1/2 inches (approx. 40 mm). Generally, you will find this type of bits as rounded shank which can be used in a normal chuck.
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