Categories: Metalworking

Granite drill: how and what to drill granite and other stone

Drill a hole in such a solid stone, which is granite, perhaps, but to perform this difficult procedure must be thoroughly prepared. Not only a granite drill is required for drilling, but also a set of appropriate tools and devices. You should also properly prepare the workplace.

Before you start drilling holes in the granite, it is worth listening to the advice of professionals

Features of granite drilling

What is needed to drill a stone (including granite)? Consider the stages of the procedure and preparation for it in more detail.

Workplace preparation

Work surface, on which the stone element will be laid for processing, should not only be strong and reliable, but also absolutely equal, and its dimensions must not be less than the dimensions of the processed product. Very important, so that none of the parts of the latter remain on the weight.

Special tool with built-in coolant supply - a professional approach to drilling natural stone

Tools and consumables

The following tools and consumables must be prepared for successful granite drilling:

electric drill;
drill bit of the required diameter, on the working part of which a diamond coating is applied;
water.

Tubular drills with diamond coating for drilling granite and other stones

To diamond drill, through which a hole in the granite will be formed, did not slip off a smooth surface, deepenings must be made at the treatment site. For this purpose, you can use an ordinary drill for metal.

What do you need water for?

Wondering about that, how to drill granite, should be borne in mind, that to perform such a procedure without the use of water as a coolant is not easy. Cooling the granite drill bit during operation is mandatory, for this purpose it is necessary to give water to a processing zone.

Device for water supply to the drilling area

The simplest device for cooling a stone drill can be made from a plastic bottle, having made in its cover some small in diameter openings. You will get a kind of sikavka, which is very convenient to use in the processing process. It should be borne in mind, that when drilling water should always be at hand, to be able to cool the heated drill at any time.

Choosing the right diameter diamond drill bit, which is optimal for drilling stone (including such a solid, like granite), the tool must be locked in the electric drill chuck. After that, you can start forming holes in the workpiece.

An alternative to water cooling - a crown with grease inside, resulting from heating in the drilling zone

How to drill

How to drill a stone, so as not to split it, and form a quality hole in it? Such questions are asked by those, who has never encountered the procedure before and is going to do it with their own hands. In such cases, you should always keep this in mind, that the tool used can not be put in perforated mode, as the created shock loading can become the reason of a split of the processed product.

Making holes in the stone (including drilling marble) should start at low tool speeds, placing it at a substantial angle. After a small groove will be formed on the treated surface, the position of the drill can be gradually aligned.

The pressure of the drill on the stone during processing should be small, at the same time it is necessary to watch, so that the cutting tool does not damage the polished surface of the product. We should not forget about that, that in the drilled area holes, in which the drill continues to work, water must be supplied constantly. Very often to fulfill such an important condition around the molded hole is created a side of the middle part of the plastic bottle, which is attached to the granite with ordinary tape. Water is poured into the inner part of such a side, the level and availability of which is constantly monitored. Use this simple device, which prevents not only overheating of the drill, but also the formation of stone dust, it is possible only at processing of horizontal surfaces.

How else can you form a hole in the granite

Drill on a stone, by means of which form a hole in granite, can be made from a tube, made of non-ferrous metal. This way, compared to the option, in which diamond drills are used, is more complex in technical execution.

How to properly drill granite with a tube of non-ferrous metal?

Around the center of the future hole on the surface of the granite must form a skirting board at least high 5 mm, for which you can use ordinary plasticine or the middle part of a plastic bottle.
Diamond dust must be poured into the inner part of the formed side, corundum or pobidite powder.
In the bath formed by the side, filled with abrasive powder, water is poured. To constantly replenish the water level in such a bath, it is necessary to prepare separate ware, in which it will be contained in sufficient quantities.

This method is not the most effective and is suitable only for shallow holes of small diameter

Drilling granite by this method alone is problematic, so you will need the help of another person, which will monitor, to the bath, formed around the performed holes, was constantly filled with water. Drilling using this technology is also performed at low speeds.

Use a pobeditovy tool for drilling granite

You can drill or drill granite using a winning tool, but there is a high probability, that the drill will not withstand the load placed on it. That is why, choosing, than to drill a stone product, it is better to prefer tools of other types. If you still haven't found it, what else to drill granite, and chose the winning instrument, it should not be used in perforated mode.

Performing drilling, closely monitor its effectiveness. If it has decreased significantly, then you should stop processing and sharpen the drill, for which you can use a semicircular file. Sharpen the winning tool, used as a drill for working with granite, will have to often: once in 60 seconds.

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