The better core drill: fast, reliable and clean.
Fast, reliable, and clean. The Ratio Quick core drill bit from Heller, with its fast and stable teeth, achieve the best results, even in reinforced concrete. By breaking down the edge of the hole, this core drill bit achieves an extremely high feed rate. The key feature: you can choose any length and diameter in the Ratio system for this tool.
With fast and rugged teeth for best-in-class results and efficient drilling dust removal thanks to an alternating sequence of flat and pointed teeth
Excellent stability and long service life
Extremely quick progress thanks to breaking down of the edge area of the hole
Effective penetration also in reinforced concrete
Length and diameter of the tool freely combinable in the Ratio system
New! The Core Breaker also removes jammed cores quickly and easily
aerated & porous concrete
sand lime brick
Hammer drilling in concrete, sand-lime brick, natural stone, brickwork, clinker.
The special technique of hardening by blasting makes for the perfect surface finish: the probability that a Heller hammer bit will break under very high loads is extremely low – even on impact with reinforcements. Ideal, especially with long dimensions: HST hardening guarantees high bending flexibility without breaking.