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core cutter

Premium core cutters for professionals.

Highest performance and long service life thanks to special steel

Fast progresss even in hard concrete

Precise positioning even in difficult corners

In the flexible Ratio system individually combinable with a variety of connection options




reinforced concrete

sand lime brick

hammer drilling

hst hardened

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.

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