Always refer to manufacturer’s instructions or consult a contracting expert during any anchoring project. A safety factor of 4: Powers Mini Dropin Specifications. Powers Tappers are designed for: This article is meant to serve only as a basic explanation of concrete fasteners.

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As with any anchoring project, it is important to keep safety in mind and follow instructions carefully. Ttapcon there is what most people including myself refer to as a Hilti.

Hilti Anchor | Concrete Fasteners

I don’t bother with cheap drill bits – mine are all Hilti or Bosch brands. JT, From what I have found there are two types of drills. These two dimensions must match the size of the tapcon being installed in order for the tapcon to achieve the holding value requirements. Those bolts are never coming out. These bits work with the selected anchor.

You can stand on one side and feel the breeze from someone breathing on the other side. When using a bit the overall length is the length of the bit measured from end to end, the usable length is the amount of the bit that can be used after the bit is chucked into the hammer drill. Check out the link below for FM Approvals and other information tapconn a variety of Powers’ products:. It doesn’t work faster with more pressure. Unless you have a diamond-tipped bit, you will not get through it.


Out fairly new house 60 years old has been a pain to drill into until I borrowed a Hilti.

Anchoring Reference Shelf

No matter where you are in the world, guys uilti drilling concrete every day. How do they GET concrete so hard? They are simply worn out or ground down just by the process of being installed. The diameter of the bit chosen is determined by the diameter of the tapcon being installed.

Hi,ti holes should be able to be made with one hand with some body pressure, but not your full weight. SDS-drills start at 4mm, so they should be OK for those screws. Of course, the everyday-crowd aren’t using homeowner gear, and for those that don’t have it.

It went completely through the 6″ slab in maybe 30 seconds by memory, couldn’t have been more than 1 minute tops. It should tear through concrete block like tpacon was paper. A hammer is not used for installation. It was like drilling cheese compared to the foundation.

And the concrete is almost 80 years old, “rich” concrete, with a high percentage of cement, very dense tapckn hard, without much porosity. They give some with the hammer blow and kind of spring back.


The one I drilled with the Bosch bit went yilti OK almost all the way down, but jammed up on some hard stuff, and twisted right off. A coil-thread version for forming applications is also available. SDS drill and bits are the way to go.

How do I determine the size of bit needed for my Tapcon® screw?

It is a DeWalt hammerdrill because that’s what Gapcon have. Hell, it is water soluble. Hilti drill bits make a huge difference. They can also be sharpened just like machine tools. Therefore, the anchor must be installed so that a minimum of 1″ of the anchor is embedded into the concrete.

A wimpy rotary hammer drills hard concrete better than a good hammer drill. They can be installed in a variety of base materials including normal-weight concrete, structural sand-lightweight concrete and concrete over steel deck. The Milwaukee Rotary Hammer goes in uilti and I drilled all those holes with 2 bits!