Some of the best brands for concrete chain saw chains and bars include: 1. **STIHL**: Known for durability and performance, STIHL offers a range of concrete cutting chains and bars that are designed for precision and longevity. Their products are often favored by professionals for their reliability. 2. **Husqvarna**: A leading name in outdoor power tools, Husqvarna provides high-quality concrete chain saw chains and bars. Their products are engineered for efficiency and are suitable for heavy-duty applications. 3. **ICS**: Specializing in concrete cutting tools, ICS offers a variety of chains and bars specifically designed for concrete saws. Their products are known for their innovative design and cutting-edge technology. 4. **Diamond Products**: This brand offers a range of diamond chains and bars that are ideal for cutting through concrete. Their products are designed to provide smooth and efficient cutting, making them a popular choice among professionals. 5. **Makita**: Known for their power tools, Makita also offers concrete chain saw chains and bars that are built for performance and durability. Their products are designed to withstand tough conditions and deliver consistent results. 6. **Echo**: Echo provides a selection of concrete cutting chains and bars that are known for their quality and reliability. Their products are designed to offer precision and ease of use. These brands are recognized for their commitment to quality and innovation, making them top choices for professionals in the construction and demolition industries.

1. **Cleaning**: After each use, clean the chain and bar with a wire brush to remove concrete dust and debris. Use compressed air to blow out any remaining particles. 2. **Lubrication**: Apply a suitable bar and chain oil to reduce friction and wear. Ensure the oil reservoir is filled before each use. 3. **Inspection**: Regularly inspect the chain for signs of wear or damage, such as broken teeth or cracks. Check the bar for warping or burrs. 4. **Sharpening**: Use a diamond file or a specialized chain sharpener to maintain the cutting edge of the chain. Follow the manufacturer's angle specifications for sharpening. 5. **Tension Adjustment**: Ensure the chain tension is correct. It should be tight enough to stay on the bar but loose enough to be pulled around by hand. Adjust the tension using the tensioning screw. 6. **Bar Maintenance**: Flip the bar regularly to ensure even wear. Check the bar groove for debris and clean it with a groove cleaner or a flathead screwdriver. 7. **Sprocket Care**: Inspect the drive sprocket for wear and replace it if necessary. A worn sprocket can cause chain slippage and damage. 8. **Storage**: Store the saw in a dry place. If storing for an extended period, remove the chain and bar, clean them thoroughly, and apply a light coat of oil to prevent rust. 9. **Replacement**: Replace the chain and bar when they show signs of excessive wear or damage that cannot be repaired. 10. **Safety Gear**: Always wear appropriate safety gear, including gloves, goggles, and hearing protection, when maintaining or operating the saw.

When using a concrete chain saw, prioritize safety by following these precautions: 1. **Personal Protective Equipment (PPE):** Wear safety goggles, a hard hat, hearing protection, dust mask or respirator, cut-resistant gloves, and steel-toed boots to protect against debris, noise, and dust. 2. **Training and Familiarization:** Ensure you are trained in operating the saw and familiar with the manufacturer's instructions and safety guidelines. 3. **Inspect Equipment:** Before use, check the saw for any damage or wear, ensuring the chain is sharp and properly tensioned. Verify that all safety features, such as chain brakes and guards, are functional. 4. **Work Area Preparation:** Clear the area of any obstacles and ensure it is well-ventilated. Mark the cutting line clearly and ensure the workpiece is stable and secure. 5. **Safe Operation:** Maintain a firm grip on the saw with both hands and stand in a balanced position. Start the saw according to the manufacturer's instructions, and never cut above shoulder height. 6. **Avoid Kickback:** Be aware of the potential for kickback. Keep the nose of the saw clear of obstructions and avoid cutting with the tip of the chain. 7. **Dust Control:** Use water or a dust extraction system to minimize dust exposure, which can be harmful if inhaled. 8. **Emergency Preparedness:** Have a first aid kit and fire extinguisher nearby. Know how to quickly shut off the saw in case of an emergency. 9. **Regular Breaks:** Take regular breaks to prevent fatigue, which can lead to accidents. 10. **Post-Use Maintenance:** After use, clean the saw, inspect for any damage, and perform necessary maintenance to ensure it is ready for future use. By adhering to these precautions, you can significantly reduce the risk of accidents and injuries while using a concrete chain saw.

To choose the right chain and bar size for your concrete chain saw, consider the following factors: 1. **Purpose and Application**: Determine the specific tasks you will perform. For deep cuts or large projects, a longer bar is necessary. For precision work or smaller projects, a shorter bar is more suitable. 2. **Saw Compatibility**: Check the manufacturer’s specifications for your saw model. Each saw is designed to accommodate specific bar and chain sizes. Using incompatible sizes can lead to poor performance or damage. 3. **Material Thickness**: Assess the thickness of the concrete you will cut. The bar length should exceed the thickness of the material to ensure a clean cut in a single pass. 4. **Power Source**: Consider the power of your saw. Electric or battery-powered saws may not support longer bars due to power limitations, whereas gas-powered saws typically handle longer bars better. 5. **Operator Experience**: If you are inexperienced, a shorter bar may be easier to control and safer to use. Experienced operators might prefer longer bars for efficiency. 6. **Weight and Balance**: Longer bars add weight and can affect the balance of the saw, making it harder to handle. Choose a size that you can comfortably manage for extended periods. 7. **Chain Type**: Ensure the chain is designed for concrete cutting, with diamond segments for durability and efficiency. The chain pitch and gauge must match the bar and sprocket. 8. **Safety and Regulations**: Follow safety guidelines and any local regulations regarding equipment specifications for construction work. By considering these factors, you can select the appropriate chain and bar size that aligns with your cutting needs, saw capabilities, and personal handling comfort.

Yes, concrete chain saws can cut through reinforced concrete. These specialized saws are designed to handle the toughness of concrete, including the embedded steel reinforcement. They are equipped with diamond-tipped chains that provide the necessary cutting power to slice through both the concrete and the rebar. The diamond segments on the chain are extremely hard and durable, allowing them to grind through the dense material effectively. Concrete chain saws are often used in construction and demolition projects where precision cutting is required. They are particularly useful for making deep cuts, creating openings for doors and windows, and cutting through walls and floors. The saws can be powered by gasoline, hydraulic, or pneumatic systems, providing flexibility depending on the work environment. When cutting reinforced concrete, it is important to use the appropriate chain and maintain the saw properly to ensure efficient operation and safety. Operators must also wear protective gear to guard against dust and debris. Additionally, water is often used during the cutting process to cool the blade and reduce dust, which helps in prolonging the life of the chain and improving visibility. Overall, concrete chain saws are effective tools for cutting through reinforced concrete, offering precision and efficiency in challenging construction tasks.