Today, rotary hammers are widely used as a reliable tool for making holes in hard surfaces. In order for the puncher not to fail at the most inopportune moment, you need to take care of high-quality components. Let’s talk about, how to choose a drill for a hammer drill.
Standard sizes of modern drills for the puncher
The most commonly used drills of two sizes: SDS Max and SDS +. The first type of drill is designed for heavy tools, and the first for medium and lightweight rotary hammers weighing up to 5 kilograms. The main difference between these drills is the maximum diameters and design of the fasteners. For example, drills with frame size SDS Max have a large maximum length, diameter and weight.
In the market of construction tools, you can find adapters for drills that allow you to use drills of those sizes for which perforators are not intended. Although this possibility exists, nevertheless, experts strongly do not recommend using it, because if the punch is designed to use the standard size of SDS + drills, then the use of components with a longer length, weight and diameter reduces the life of the tool.
Pay attention to the sludge discharge rate.
In the modern building materials market, three types of drills are especially common: screw drills, with a large and a small angle of inclination. Thanks to the use of the principle of screw cutting, it is possible to ensure a high rate of disposal of sludge in cases where a shallow grooving is used. Therefore, for drilling holes with great depth, auger drills will be the optimal solution, since they contribute to a small load on the tool and allow you to drill at high speed.
Choosing a drill for a hammer drill, It is important to note that products with a slight slope of the grooves are designed for long-term operation with little effort. When using such drills, a minimum load should be ensured. Of course, in this case, the specialist practically does not get tired, but the drilling speed remains low. Such drills should be used to drill a large number of holes of small depth.
In drills with a slight slope of the grooves, sludge is discharged much faster, which increases productivity. However, with increasing speed, the load on the hammer also increases. If you want to increase the speed of drilling, use these drill bits. Just make sure that the tool does not overheat.
Choose a manufacturer
Today, there are many drill manufacturers on the market. In the low price category you can find products of Chinese and domestic manufacturers. The middle price category includes «amateur» components of well-known manufacturers, if you are interested in the products of professional European companies, then for them you will need to pay a considerable amount. Let’s carefully examine the products of each price range.
The performance of Chinese and domestic boers is quite variable. During their production, the quenching mode is often violated, which leads to premature failure of the product. In addition, the drills of this price range may have inaccurate sizes of the connecting element, and the quality of products from the same bundle can vary dramatically (one drill will last a long time, and the other may break immediately). The acquisition of such products is justified only when the hammer is used extremely rarely, and the desire to save is almost unstoppable.
Quite often, such savings do not lead to anything good. Therefore, even for unprofessional use, it is better to give preference to the drills of famous brands of the amateur category. These drills are not designed for constant and high loads, however, at home they will serve their owners for many years without causing them any problems..
Today, rotary hammers are widely used as a reliable tool for making holes in hard surfaces. In order for the puncher not to fail at the most inopportune moment, you need to take care of high-quality components. Let’s talk about, how to choose a drill for a hammer drill.Standard sizes of modern drills for the puncher
The most commonly used drills of two sizes: SDS Max and SDS +. The first type of drill is designed for heavy tools, and the first for medium and lightweight rotary hammers weighing up to 5 kilograms. The main difference between these drills is the maximum diameters and design of the fasteners. For example, drills with frame size SDS Max have a large maximum length, diameter and weight.
In the market of construction tools, you can find adapters for drills that allow you to use drills of those sizes for which perforators are not intended. Although this possibility exists, nevertheless, experts strongly do not recommend using it, because if the punch is designed to use the standard size of SDS + drills, then the use of components with a longer length, weight and diameter reduces the life of the tool.
Pay attention to the sludge discharge rate.
In the modern building materials market, three types of drills are especially common: screw drills, with a large and a small angle of inclination. Thanks to the use of the principle of screw cutting, it is possible to ensure a high rate of disposal of sludge in cases where a shallow grooving is used. Therefore, for drilling holes with great depth, auger drills will be the optimal solution, since they contribute to a small load on the tool and allow you to drill at high speed.
Choosing a drill for a hammer drill, It is important to note that products with a slight slope of the grooves are designed for long-term operation with little effort. When using such drills, a minimum load should be ensured. Of course, in this case, the specialist practically does not get tired, but the drilling speed remains low. Such drills should be used to drill a large number of holes of small depth.
In drills with a slight slope of the grooves, sludge is discharged much faster, which increases productivity. However, with increasing speed, the load on the hammer also increases. If you want to increase the speed of drilling, use these drill bits. Just make sure that the tool does not overheat.
Choose a manufacturer
Today, there are many drill manufacturers on the market. In the low price category you can find products of Chinese and domestic manufacturers. The middle price category includes «amateur» components of well-known manufacturers, if you are interested in the products of professional European companies, then for them you will need to pay a considerable amount. Let’s carefully examine the products of each price range.
The performance of Chinese and domestic boers is quite variable. During their production, the quenching mode is often violated, which leads to premature failure of the product. In addition, the drills of this price range may have inaccurate sizes of the connecting element, and the quality of products from the same bundle can vary dramatically (one drill will last a long time, and the other may break immediately). The acquisition of such products is justified only when the hammer is used extremely rarely, and the desire to save is almost unstoppable.
Quite often, such savings do not lead to anything good. Therefore, even for unprofessional use, it is better to give preference to the drills of famous brands of the amateur category. These drills are not designed for constant and high loads, however, at home they will serve their owners for many years without causing them any problems..
After reviewing the sizes and types of drills, as well as examining the features of products from various manufacturers, we identified the main factors that will help in the right way choose a drill for a hammer drill. If you take into account all the recommendations, you will not have problems with the operation of the tool.
