The answer to the question of how many holes a bit can drill is not 100% answerable. Operator technique is another variable since how hard the operator pushes on the bit during the drilling operation can have a significant influence on the bit's life. The abrasiveness of the base material is another large factor red brick is more abrasive and will wear a bit faster than concrete. For example, a bit used to drill a 3” deep hole will drill 1/3 the number of holes made by a bit used to drill a 1” deep hole. The depth of the hole is a significant factor. The number of holes that can be drilled by a carbide tipped drill bit depends on many factors. The bit size required for each of the diameters are as follows: Drill Bit DiameterĮach diameter of the concrete screw has a specific diameter of carbide drill bit that must be used to ensure proper hole tolerance. The hole must be drilled using a carbide tipped drill bit that meets ANSI standards and a hammer drill. The hole size required for a Tapcon® is slightly smaller than the diameter of the screw being used. A hole for this screw must first be drilled into the base material before it can be inserted into the hole. Tapcons are American made as well as the original concrete screw. They have been manufactured since the late 1970’s by ITW/Redhead. Tapcon® concrete screws are designed to tap threads into base materials such as concrete, brick or block. Tapcon® concrete screws are a brand name for a concrete screw.
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