![]() The operator’s technique also has a role in the bit’s life. ![]() Red brick is more abrasive than concrete and will wear faster. For example, a 3” deep hole will produce 1/3 the holes as a 1” deep hole. The number of holes a carbide-tipped drill bit can drill depends on numerous factors. What Size Drill Bit Do I Use For 5/16 Tapcon?
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