![]() The life expectations can differ based on the compressive strength and aggregate mixture of the concrete. A SDS shank Tapcon drill bit can be expected to drill 100 holes minimum to full depth in 4,000 psi concrete. How many pilot holes can I expect to get out of a Tapcon drill bit? A straight shank Tapcon drill bit can be expected to drill 60 holes minimum to a 2" depth in 4,000 psi concrete. It is also recommended that the drill flutes be cleared 2 or 3 times when drilling. For optimal performance, it is highly recommended to drill through concrete with a rotary hammer or hammer drill in the hammer mode. TTP HARD drills are available in both metric. If you need to know which drill bit to use for a tap follow link to Drill bit tap size chart. Can I drill a pilot hole using a drill rotation-only movement? Although you can drill through concrete with a carbide-tipped bit using a rotary drill only, it will take longer and significantly reduce the drill bit life. If you need to see how drill bits sizes compare in the different measurement scales we have a link to a Drill bit size chart / drill bit comparison chart. Why do I need to clean the hole? Cleaning the hole prevents any dust that settles into the hole from potentially interfering with the Tapcon threads. What does ANSI stand for? The American National Standards Institute is a private, non-profit organization that oversees product standards, including masonry drill bits. 3/16", 1/4" and 5/16" Tapcon anchors require specially engineered Tapcon drill bits, which are designed with tighter tolerances than standard ANSI drill bits for maximum holding power. Can I use standard ANSI drill bits to secure Tapcon drill bits? 3/8" and 1/2" Tapcon anchors can use standard ANSI drill bits. This will ensure that any dust that settles in the hole will not interfere with the Tapcon threads.
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