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Bur concrete S & R SDS-4plus Zentro is used for drilling holes in a perfectly flat concrete, masonry and natural stone.
When drilling holes deeper than 450 mm is necessary for making pre-drilling drill length at a depth of not less than 150 mm, then the drill 450 mm in length, then drills 600 or 900 mm.
Bur SDS-4plus Zentro has:
- Dynamically stable structure, ensuring reduction in vibration during drilling, which greatly improves the efficiency of execution of apertures;
- Whole tipped with four cutting edges and patented chamfers for perfectly smooth holes;
- 4-vitkovoy spiral increases the stability of the drill and reduces vibration, as evenly distributes the load on all four grooves;
- the heat treated surface with a special polishing to reduce wear and increase the resilience of the drill to the internal voltage during operation;
- A long life (up to 50%) compared with other drills.
Bur concrete S & R SDS-4plus Zentro for perforating from 2 to 4 kg with the type of cartridge or SDS-plus dvuhpazovym.