Core Bit Wet Vs Dry
There are two different methods when coring: wet and dry. Wet coring is by far the preferred option – water is a diamond’s best friend! Using water helps to increase the lifespan of a diamond core bit by reducing some of the heat generated by the friction, especially on abrasive materials, and therefore preventing the core bit from overheating. The abrasive slurry created when wet coring increases the production rate and the water flushes out the hole, preventing the core bit from jamming in it. The water also helps minimise the amount of dust generated, which presents a safety hazard to those in the vicinity. If a job application does require dry coring, e.g. when working close to power lines or in furnished spaces, always wear a dust mask to prevent yourself from inhaling dust which can lead to serious lung disease. We recommend only using dry core bits on brick and block, not concrete, and using a dust extraction system.
Dry Cutting
Ensure the following:
Use personal safety equipment, including safety masks and safety-certified vacuums.
Ensure that the workplace is well-ventilated and the exposure to respirable crystalline silica (silica dust) does not exceed the standard limit of 0.05 mg/m3 (eight-hour time-weighted average).
To avoid blade kickback ensure it is at correct speed and the arrow on the blade coincides with the machine’s rotation direction before cutting.
Ensure you’re using a dry-cutting blade.
Ensure no potential risks and the area is clean and safe while operating.
Follow manufacturer instructions before operating.
Avoid the following:
Do not make long continuous cuts with a dry blade (carry out a slight pendulum movement to keep the blade cool).
Do not cut too deep in a single pass or apply too much pressure on your diamond blade through the cut.
Do not ignore signs of blade warping, smoke, or friction. Excessive heat generated at the blade’s cutting edge is hazardous to the tool, equipment, personnel and material.
Do not attempt to cut curves with your blade.
Do not use dry blades for raking out mortar joints, metals, or other unsuitable materials.
Wet Cutting
Ensure the following:
Wear PPE and remove any hazards from the area.
Ensure adequate water supply to both sides of the blade.
Ensure the water resembles a coffee-like slurry.
Ensure you’re using a wet diamond blade.
Ensure the blade is running at the correct speed before cutting.
Follow the manufacturer’s recommended safety guides.
Avoid the following:
Do not force the blade or rush the cutting process.
Do not use a machine with a damaged or open blade guard.
Do not have unsafe electrical connections in the working area; ensure GFCIs are used.
Do not leave water unattended. To prevent slip hazards; make sure to clean the area for operator safety, prevent environmental risks, and mitigate possible
chemical exposure.
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Syntec Diamond Tools develop state of the art segments that cut faster and last longer than the competition. Construction professionals around the world trust Syntec Diamond Tools to provide them with the best coring solutions.