It’s hard enough core drilling through rebar, concrete or other materials, but when you happen to hit rebar, it’s entirely possible that your drilling operation will come to a complete halt. Standard masonry bits are not capable of getting through steel rebar. Current solutions include: Rebar Eater Bits and B+BTec HI Speed Wet Core Bits, but sharp-edged drill bits are generally much more effective, and they’re certainly a whole lot faster.
The drawback to this is that standard masonry drill bits will quickly lose their edge when cutting through rebar, and they may even be damaged somewhat. At the very least, you can expect a considerably shortened life cycle if you attempt to routinely cut through rebar with anything less than a carbide core drill pit or a diamond-tipped drill bit. By knowing the right kinds of drill bits to use for various applications, you’ll be able to cut through rebar, whether it’s embedded in cement, steel or any other kind of material.
Using masonry bits on rebar
The Abrasive Carbide Tip Masonry Bits are equipped with are definitely capable of cutting through concrete, and even of rebar. Ordinary wood bits or metal bits have sharp tips which would be completely useless in trying to cut through brick or concrete, but the Abrasive Carbide Tip Masonry Bits on masonry bits can quickly cut through substances which are hard as rock. Unfortunately, they will lose much of their effectiveness when drilling through metal or wood.
Using metal bits on rebar
Most metal bits are of a type which veterans of the industry refer to as ‘twist bits’, which are bits that have a tapered tip and a shank which is lined with sharp-edged grooves. Manufacturers who make these types of twist bits use hardened steel, and then coat the exposed surfaces of the bits with metals that are powerfully resistant to overheating.
Obviously, overheating can become a major issue if a drill is in operation for any length of time, and there is strong resistance from the substance being drilled. The grooves in metal twist bits are not only fully capable of boring through metal, but they also have the capability of pushing waste material to the very top of an entry hole, so it doesn’t get in the way of further drilling.