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Masonry Drill Bits

masonry drill bitThe masonry drill bits here are a variation of the twist drill bits. The bulk of the tool is a relatively soft steel, and is machined with a mill rather than ground. An insert of tungsten carbide is brazed into the steel to provide the cutting edges.

Masonry drill bits typically are used with a hammer drill. The bit is both rotated and hammered into the workpiece; the hammering breaks up the masonry at the drill bit tip, and the rotating flutes of the drill bit body carry away the dust. Rotating the bit brings the cutting edges onto a fresh portion of the hole bottom with every hammer blow. Hammer drill bits often use special shank shapes such as the common SDS type.

Masonry drill bits of the style shown are commonly available in diameters from 5 mm to 40 mm. For larger diameters, core bits are used. Masonry bits up to 1000 mm (39") long can be used with hand-portable power tools, and are very effective for installing wiring and plumbing in existing buildings. A star drill is a hand powered drill used in conjunction with a hammer to drill into stone and masonry. A star drill's cutting edge consists of several blades joined at the center to form a star pattern.

It is not easy to drill holes into concrete blocks, bricks, or stone as well as quarry tiles. Heavy-duty drill bits are required to do the job well and with precision. And the best bits to do this job are the masonry drill bits. These drill bits are available in various types.

There are masonry drill bits that have twists in order to help in drilling into steel as well as other hard metal. There are other types of masonry drill bits which are used in hammer drill in order to drill hard materials. This bit hammers the material and after that, it rotates into the work piece. While hammering, the masonry gets broken at the tip of the drill bit. Now the flutes of the masonry drill bit carry away the dust drilling it into the work piece and then rotating bit hammers its way to the masonry in order to give it a smooth edged hole.

The common masonry drill bits are the ones with SDS shanks. They have spring-loaded chuck which helps the bit to chuck with a quick hand-action. This is essential for drilling these bits into masonry. You may find masonry drill bits made of silicon bronze alloy as the cutting point. This is especially good in case you wish to do some heavy-duty drilling.

These are also called as durium tips and are easily available at any hardware store. Such masonry drill bits are very popular with contractors, construction workers and used for other commercial purposes. Such bits are used in power drills as those drills are used for heavy woodworking or metal drilling. And in case cheap quality drill bits are used, the hammering action can result in shattering the bits.

It is always better to opt for low rotation speed while you drill hard materials as high speed drilling could lead to overheating the masonry drill bits making them break the tip. And keep on pulling out the bit in order to brush off dust to ensure that you have a continuous smooth drilling action.

These drill bits are available in various different sizes ranging from 5mm in diameter up to 40mm. And in case of drilling through masonry walls, bits measuring from 300 to 400mm are used in order to drill efficiently. These are extra long masonry drill bits which should be handled with care. Hence, such a drill bit is typically used by construction workers who have expertise in using such drills as well as bits. Tungsten carbide tip is also quite popular; and they are bound to spiraled steel shafts. These tips are quite durable and can be sharpened with the help of a drill sharpener or a grindstone. This should be done occasionally in order to get the maximum effect of drilling with these drill bits. A masonry drill bit can be quite helpful when you wish to drill through concrete blocks or bricks around your house.

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