Circular Saws are a device made for swift and precise cutting of sheet materials and timber with a flat surface. The circular blade in the saw does the actual work of cutting. It is designed to keep the person who is operating the machine safe and makes the tool easy to handle and use. For best results proper way of using circular saw is very necessary. 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.
While using a circular saw makes it a point to use correct blade, which is properly sharpened as dull blades can bind and could be overheated. See to it that the depth of the blade does not exceeds more than ? inch, more than the thickness of the wood to be cut The work piece is more likely to kick back if you have too much blade exposed. Before using a circular saw equip yourself with an eye- protector or eye-cover. There are many circular saws but the most widely used are Cordless Circular Saw and cold saws. The cordless circular saw the name itself suggests is a cordless one. It is a handheld saw, which is most widely used, and the most useful too a person can have in his toolbox. it performs various tasks such as making straight cuts in timber or man made board.
The cordless saw is easily manageable (portable) which works on chargeable batteries and is much easier as compared to handsaw giving a better edge if the correct type of guide is used. The greatest advantage of this saw is, it is battery operated and can be taken anywhere where the work is to be done. The batteries used to operate the saw are powerful enough to last till you finish your job. Moreover it is a powerful tool, which comes real handy while reaching out for the tight corners. Another most widely used saw is the cold saw. Cold saw is powerful heavy duty metal cutting tool, which is use for, large saw throughputs. Most of the leading industries depend on Cold circular saws for its long-term performances and heavy-duty construction. Cold Sawing is the most economical method of cutting steel, stainless steel and aluminum. It is widely used and fast growing method of metal cutting with accurate cutting which gives finished cuts to avoid secondary operations. We can get the models of the circular cold saw like the manual, Semi-automatic and completely automatic. To select the model it heavily depends on the quantity you want to saw through the model. Large quantities of sawing can be done with fully automatic circular saw. These fully automatic precision cold saws and circular saws are designed for speed, accuracy, and reliability, and are capable of thousands of cuts in a single shift of work. Many of these cold saws feature push button controls for the completely automatic cycle of feeding, clamping, and sawing.
Certain things should always be taken into consideration while using these saws. Use proper safety gears gear like the eye-covers or protectors, rubber or leather industrial gloves etc. Also Wear dust masks if you are allergic to dust.
In-Line Saw - These are the most common types of circular saws and tend to be the least expensive, also they don't weigh as much as the Worm Drive saws. An In-line saw's motor sits perpendicular to the blade and a shaft runs directly from the motor to drive the blade. An In-Line saw will suite most of your applications and except for changing the blades, they are maintenance free. Worm Drive Saw - A worm drive is for heavy duty use and tend to cost a little more than the In-Line saws. A worm drive motor is positioned parallel with the blade and uses a gear to increase the torque transferred to the blade. These tend to be a little heavier than the in-line models. 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.
Circular Saw Features Electric Brakes - This is one feature I would get, no questions asked. An electric brake stops the motor in about two seconds after releasing the trigger, while a saw without an electric brake will take about 10 to 15 seconds to stop. The electric brake works by reversing the flow of electricity to the saw motor. The reason to go with the eclectic brake, which most models now offer, is to save limbs and fingers. 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. Stopping the blade quicker means less time and chances of getting hurt. Blade Capacity - As noted above circular saws come in different blade sizes. If you are buying a corded model I would go with a 7 1/4" and cordless go with a 6 1/2". The larger blade models are more heavy, but in the long run you will have to make less cuts, especially on angle cuts. Shaft Locks - Make sure your saw has a lock. A Shaft lock is usually a button you press that holds the blade still, to make changing the blade easier. If your buying a professional power circular saw, it should have this feature. The cheaper models usually do not have this feature. What to look for when buying a circular saw I would definitely look for a circular saw that accepts 7 1/4 blades. These are the most common blades; therefore making it easier to buy blades down the road. Also I would look for a saw with a long cord, you would be surprised how many cords are very short. You can always add an extension cord on, but I would look for a cord that is at least 8 feet in length. Another primary item to look for is an adjustable base plate. This is good for making angle cuts and sometimes comes in very handy. Cordless Saws - Cordless saws are nice because they have no cords to plug in, trip over or even cut through. However they lack the power. The blades tend to be smaller therefore they do not cut as quick. Since it takes a lot of power to cut through wood, you will definitely need more than one battery as you will be recharging them often. Corded Saws - Corded saws are more powerful, but also heavier. If you are going to be cutting a lot of wood, grab the corded model as it will save you aggravation done the road. I currently own a cordless and corded one. I find myself using both models just about the same. It is just easier to grab the cordless one and start cutting. Most of the carpenter I know or have talked to also own both styles.
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