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4-Cutter SDS+ Carbide Hammer Drill Bit Masonry Kit. If you plan on drilling through concrete with rebar, save yourself time and money by using these heavy-duty Milwaukee bits.
A stonemason's hammer, also known as a brick hammer, has one flat traditional face and a short or long chisel-shaped blade. [1] It can thus be used to chip off edges or small pieces of stone, cut brick or a concrete masonry unit, without using a separate chisel. The chisel blade can also be used to rapidly cut bricks or cinder blocks.
Although each blow is of relatively low force, these thousands of blows per minute are more than adequate to break up concrete or brick, using the masonry drill bit's carbide wedge to pulverize it for the spiral flutes to whisk away. For this reason, a hammer drill drills much faster than a regular drill through concrete, brick, and thick lumber.
Masonry bits typically are used with a hammer drill, which hammers the bit into the material being drilled as it rotates; the hammering breaks up the masonry at the drill bit tip, and the rotating flutes carry away the dust. Rotating the bit also brings the cutting edges onto a fresh portion of the hole bottom with every hammer blow.
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