The hammer drill is necessary for professional builders and those who occasionally need to drill concrete and brick, dig grooves for electrical wiring, and perform minor household repairs. The purchase of nozzles extends the functionality of the tool. Features of the choice of additional equipment are described in this article.
- a What to look for when buying
- 2 Boers
- 3 Scissors
- four Crowns
- 5 Drill Adapters
What to look for when buying
Before ordering consumables, it is necessary to determine which cartridge system is installed in the rotary hammer and which rods should fit.
Most models use the SDS system, which was developed by Bosch in the last century and is still actively used.
The most common stem types are:
- SDS-plus, nozzles with a diameter of 10 mm and four grooves (2 open and 2 closed) are suitable for them, the rods are recessed into the 40 mm chuck;
- SDS-max, for them you need to purchase equipment with a diameter of 18 mm and five grooves (3 open and 2 closed), the rods are recessed in the 90 mm chuck.
SDS-plus cartridges are installed in small models weighing from 2 to 4 kg, designed for household use and minor repairs. SDS-max cartridges are used in professional tools weighing from 5 kg, which are used for general construction work.
A drill is a drill with an SDS shank, without which it is impossible to drill through brick or concrete.
For small models it is necessary to purchase SDS-plus drills. With this nozzle you can make a hole with a diameter of 5-25 mm. For small household repairs, a set of 5-8 SDS-plus drill bits is sufficient.
For powerful equipment and large-scale construction work, SDS-max drills are chosen. Such equipment makes it possible to make a hole from 12 to 80 mm. Massive drills are most often purchased separately and purchased for a specific type of work.
If you need to remove plaster, dismantle tiles and tiles, you will need a chisel. Such equipment is selected based on:
- drill chuck models,
- required working length.
The most common are scissors with a length of 25 cm and a working surface width of 2 cm.
These devices are necessary for drilling large round holes with a diameter of 6.8 to 15 cm. Crowns are useful during large repairs when you need:
- preparing the walls for the installation of sewage, water supply or electricity,
- for mounting all kinds of structures, for drilling round holes.
Before purchasing such consumables, it is necessary to determine the scope of work, frequency of use and budget.
Pobedite crowns are considered the cheapest and short-lived. They are suitable for drilling in concrete and brick. Carbide patterns are used to drill concrete and brick, but fail when colliding with metal. Diamond crowns are the most reliable and expensive. They serve for a long time, are not afraid of metal and are expensive.
Additional adapters will be needed for those needing to drill a hole in wood or metal, and there’s nothing handy except a hole punch. If there is an adapter, you do not need to purchase a drill from the SDS-plus or SDS-max system. For such works, ordinary drills from an old drill are suitable.
In addition to attaching drills, adapters can be used to attach crowns or attachments (for example, a mixer for mixing mixtures).
Additional equipment is necessary for those who want to expand the functionality of their hammer drill and not spend money on drills and other consumables with SDS-plus or SDS-max rods, which are much more expensive.