Laser guides are a fairly new feature available on some models, and are especially useful when ripping boards or making long cuts on plywood. Also worm saws are not maintenance free, you will need to occasionally add a special oil to the motor, which is nothing more than unscrewing a screw and adding the oil, it is very easy. However, there are a variety of blades available to perform different tasks. DEWALT also offers an 18v XRP cordless circular saw kit with a commanding 3,700 RPM for fast and smooth rip, and cross cuts. To select the model it heavily depends on the quantity you want to saw through the model. The reason to go with the eclectic brake, which most models now offer, is to save limbs and fingers. Even if you are already working with the saw still you need to know certain good things about it which will not only guarantees precision results but also keeps the operator safe from any hazards. When choosing a quality saw, there are number of factors to take into consideration. Milwaukee's 18v 6-1/2in cordless circular saw delivers extreme power in an ergonomic and lightweight design. Unfortunately, not all carpenters can say that and I have witnessed some real gnarly accidents. Corded Saws - Corded saws are more powerful, but also heavier. The large circular saws have a blade with diameter 190mm and usually contain strong, powerful motors. Typically consumers who make a purchase of significant value will rely on word of mouth, friends, family or the service associate at the large local DIY retail store and that is fine, but with just a little more effort you can make sure you are getting the best circular saw at the best price around (let the DIY retailer tell you that with honesty) and I'm sure you will agree that purchasing the best product for the best price is well worth the effort. Makita also provides an advanced charging system (45-minute Optimum Charger) that, through built-in CPU chips, communicates with the battery to maximize performance. Its XRP battery offers extended run-time for increased productivity, and longer overall battery life for optimized efficiency on the job. I currently own a cordless and corded one. Use proper safety gears gear like the eye-covers or protectors, rubber or leather industrial gloves etc. Circular saws are widely used to cut the woods or other metals. Most of the carpenter I know or have talked to also own both styles. The tool is also backed by DEWALT's three year limited warranty on the saw and battery. After you are cutting for a while your arm will tend to get tired and you want to make sure your safe at all times. An In-line saw's motor sits perpendicular to the blade and a shaft runs directly from the motor to drive the blade. Take into account the wattage and just what you'll be cutting. However, there are a variety of blades available to perform different tasks. Stopping the blade quicker means less time and chances of getting hurt. Also while operating the saw it is necessary to keep the cords away from the cutting line. If you'll be using the saw for extended periods of time, the weight is worth considering. The saw usually rests on the sole plate and the blade runs through a slot in the sole plate while cutting and the blade have an upward cutting action. Most circular saws also have additional safety features like blade and trigger locks -- but don't let these mechanisms fool you. Circular saws are excellent for rip cuts, cutting with the grain, and also for cross cuts, or cuts made against the grain The saw is also surprisingly accurate - even without a guide. Shaft Locks - Make sure your saw has a lock. Milwaukee's circular saw comes with two 18v high-capacity lithium ion batteries, a one hour charger, 6-1/2in- 24T carbide-tipped blade, and a convenient contractor bag. The large circular saws have a blade with diameter 190mm and usually contain strong, powerful motors. Cordless Saws - Cordless saws are nice because they have no cords to plug in, trip over or even cut through. I've spent hours gathering a ton of reviews from actual buyers and users of the circular saws displayed on my site. The greatest advantage of this saw is, it is battery operated and can be taken anywhere where the work is to be done. It is widely used and fast growing method of metal cutting with accurate cutting which gives finished cuts to avoid secondary operations. The saw also features an electronic overload system, a mechanism designed to protect the saw from burning up. Cold Sawing is the most economical method of cutting steel, stainless steel and aluminum.