Inexpensive quality drill bits for concrete and stone.
Fast duo cutter with an SDS-max shank for non reinforced concrete, brick and stone applications. Fast removal of drill dust and low vibration are additional benefits of the Speed2Max, which also scores due to its low entry-level price.
Fast dual-cutter for all concrete and stone applications
Features proven dual-cutter design and rugged carbide plate
Genuinely low entry-level price
High drilling speed thanks to an optimised tip geometry and wide helix for fast drilling dust removal
Fast drilling dust removal thanks to wide helix
Low vibration reduces the load on the user
Easy and precise positioning thanks to centring tip
aerated & porous concrete
sand lime brick
Hammer drilling in concrete, sand-lime brick, natural stone, brickwork, clinker.
Heller is the first manufacturer specialising exclusively in drill bits to test its products in an independent institute for the adverse effects of drilling vibration. If a rotary hammer is integral to the application, it can be expected that so-called “hand-arm vibration” could have some form of long term effect on the users health. The “EU Vibration Directive 2002/44/EC” aims to help, in that it stipulates the maximum vibration to which users may be exposed. Lowvibration power tools are called for in addition to low-vibration techniques – but low-quality drill bits can also have an adverse effect. Low cost, poorly designed drill bits can reserve the effect of low vibration power tools. Heller drill bits demonstrated optimal effectiveness and extremely low vibration in the practical tests. In fact, they even distinctly reduced vibration.
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.
All drill bits by Heller have the independent PGM certificate, assuring safe connection systems.