FAQ - Concrete

I have a Makita gas power cutter. What is the proper fuel mixture?

Makita 2-cycle power cutters require a 50:1 mixture with synthetic oil (part numbers T-00739 6.4 oz., or T-00745 2.6 oz.). Please refer to the Instruction Manual to confirm the proper grade of oil.

How often should I change or clean the air filter on my power cut saw?

Makita power cutters come with a five-stage filter system with Advanced Directional Air Flow for increased performance and easy maintenance. The foam pre-filter should be checked and cleaned daily or at least every four operating hours when cutting with high dust amounts. When cutting wet or when cutting steel, the foam pre-filter should be cleaned weekly or every 25 operating hours (never use compressed air to clean the filters). The smaller inner filter can be washed in lukewarm soapy water with regular dishwashing liquid or Makita filter cleaner, and allowed to air dry. The paper air filter insert can be slightly opened and tapped against a clean surface, but should never be washed. For part numbers on specific replacement filter parts, go to the specific product page on the Makita website.

When drilling into concrete what is the difference between a hammer drill and a rotary hammer?

Hammer drills receive their hammering action from two cams striking each other. A rotary hammer is electro-pneumatic, getting its hammering energy from air pressure. Hammer drills are best used for setting small anchors in unreinforced concrete, as well as stucco, masonry, and block wall. Rotary hammers are engineered for use on both reinforced and unreinforced concrete, as well as stucco, masonry, and block wall.

Is it possible to do demolition work with a rotary hammer?

Some rotary hammers can do light demolition work, like chipping tile. But for heavy or extended demolition work, a demolition hammer is the better tool for the job.

What is AVT?

AVT (Anti Vibration Technology) is exclusive counterbalance system that reduces vibration up to 3 times less than competitive models. With AVT the hammering energy is focused on the work surface and less vibration is directed at the tool and the tool user.