Archive for the 'Circular Saws' Category

A Primer on Circular Power Saw Blades

Chances are if you visit any job site on any given day you’ll probably hear a circular saw blade in action. It’s unique sound is unmistakable and the circular has played an important role in building this country. Circular saw blades are cutting tools that require care and can be expensive to either replace or re-sharpen the damaged angular teeth. The protection of the saw blade when transferring and storing is a problem because of moisture and contact with other saw blades.

For reasons of safety and economy, it’s a good thing to have in mind proper practices when it comes to maintaining circular power saw blades, and the article that follows provides a wealth of information.

Before getting to the substance of the article, please note that if you’re in the market for a circular saw, there are large selections of corded circular saws and cordless circular saws offered for sale at very advantageous prices through the eBay auction listings which you’ll find by clicking on the foregoing links.

Circular Power Saws - Adjusting, Setting, and Choosing The Right Blade

In a previous article I covered selecting the right circular saw and using it in a safe manner. In this article I’ll cover how to adjust and set your new saw as well as how to pick the right blade for the job.

A safety tip before I go on. When replacing a blade, make sure that it will be turning in the right direction. This is generally indicated by an arrow on the blade. Putting the blade on incorrectly significantly increases the risk of personal injury.

Although circular saws operate at maximum efficiency when they are adjusted to cut just through the bottom of the work, many users leave the blade at the full-depth adjustment for general work. The difference in performance is only noticeable when you are cutting thick wood.

If the tilt angle of the saw has been changed at a previous stage of the job, be sure that it is correctly readjusted. You can check for right-angle cuts by cutting a scrap piece of wood and using a square on the cut section. If you adjust the saw for miter or bevel cuts, test the angle on a scrap piece before the cutting the pieces intended for the job.

When trying out a new saw, spend the time to familiarize yourself with all the adjustments by making several cuts on scrap wood. In this way you become familiar with this particular saw and the accuracy of its settings. Each saw is different, even among the same models. The calibration on the saw, showing angles and distance, should only be used as a guide, never for actual measurements. Remember, too, that the width of the saw kerf (cut) and the types of blades used affect the precision of the final result. Remove gum, dirt, and pitch from the bottom of the saw frequently as it will build up overtime to the point where the saws performance is diminished. Occasionally waxing the bottom of the saw is a good idea. It will help the saw glide smoothly over the work area. Also, make sure the trigger switch is operating smoothly and it does not inadvertently lock into the “On” position.

Choosing The Right Saw Blade.

Combination crosscut and rip blade - Suitable for most purposes. This blade does a good job of cutting thick or thin hardwoods and softwoods with or across the grain, as well as plywood and hardboard.

Crosscuts blades - This blade possesses fine teeth which cut smoothly across the grain of the wood. Suitable for cutting hard and soft wood as well as framing lumber such as 2×4’s. This blade is not suitable for ripping.

Rip blade - A blade with larger teeth. This one is recommended for cutting a large amount of wood while going with the grain.

Hollow ground blade - This blade makes the sharpest cuts. It handles both thick and thin materials with little effort. Keep this blade sharp however to minimize wood fiber from fraying and scorching.

Abrasive blade - These blades are made to use on masonry, metal, plastic, and other hard-to-cut materials. Buy the blade to suit the material being cut.

There you have it. By now you should be comfortable enough to set up your circular saw to use. Just remember to take your time, test your adjustments, and always use the right blade for the job.

Chuck Lunsford is the Internet Manager for Mytoolplace.com. He offers advice on how to select and use the right power tools for the job. Visit our website and learn more about saving money on brand name cordless tools.

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May 08 2008 | Circular Saws | No Comments »

Safety in Selecting and Using Circular Power Saws

Today, circular power saws available on the market have various safety features built in. These safety measures, however, are only as good as the care the user puts into safe circular saw operation. Such features are discussed below. Also, you’ll pick up some valuable tips on how to use a circular saw in the safest manner possible.

Your choice of what saw to buy will be determined by your particular requirements. But, when it comes to safety, there are no requirements that are particular to you. You need to implement the recommended safety practices which are particular to using all circular saws.

Before getting to the meat of the article, please note that if you’re in the market for a circular saw, there are large selections of corded circular saws and cordless circular saws offered for sale at very advantageous prices through the eBay auction listings which you’ll find by clicking on the foregoing links.

Circular Power Saws - How To Choose And Use Safely

Any portable saw you buy for your home or shop should be capable of cutting a 2 x 4 piece of wood at a 45-degree angle. In general, saws that have a blade diameter of 7 or more inches are good choices. Using a saw safely should be of primary importance. In this article I’ll cover the basics on saw selection and safety practices.

A number of considerations have a bearing on your decision when buying a circular saw. Do you want powered or cordless? Does the saw come equipped with a depth adjustment, which enables you to make shallow cuts when required; an angled adjustment for cutting miters and bevels; and a ripping fence, which guides the saw when you want to rip a board to a specific width? It should have an automatic spring-loaded blade guard that retracts as the blade enters the work area, and then covers the exposed part of the blade as soon as the cut has been completed.

Since most present-day saws have all these features, your final choice often depends on how conveniently a saw operates and how easily the adjustments are made. Another major consideration should be the weight of the tool. Think about how long you intend to use it in any one stretch of time. Large-sized adjustment nuts are a worthy consideration, as is an easy-to-grip handle on the blade guard. In addition to the saw handle, which contains the trigger starting switch, a knob on the end of the motor housing is convenient as an extra handle for awkward situations. This feature is not essential with smaller saws.

Safety Practices

When using any portable saw, always be sure that the work to be cut is firmly supported, or held, so that it will not shift during the cut. Start the saw before the blade enters the work and guide it straight along the cutting line. Veering can cause jamming, stalling, possible motor damage, or even worse the entire tool may jump or hop out of the wood creating the possibility of a serious injury. Be especially careful not to let the saw veer when using a masonry-cutting blade. Blade breakage could result and the flying shrapnel may cause injury. If a long piece of wood is to be cut, it should be supported by a helper. It must not be moved during the cut in such a way as to close the cut and bind the blade. Keep a firm grip on the saw with your right hand, and keep your left hand well away from the saw. Make certain also that the cord is well out of the way so it will not be cut by the blade.

Maintain a strong grip on the saw to keep it from tipping or dropping at the end of the cut. Keep your hands clear of the blade during the time required for it to come to a complete stop. It’s also a good idea not to touch the blade immediately after it stops as it’s probably hot enough to burn you. Never adjust the saw without first disconnecting the power cord.

Picking the right circular saw is largely a matter of personal choice. Using the tool safely is a matter of common sense. Pick wisely and use it even more wisely.

Chuck Lunsford is the Internet Manager for Mytoolplace.com. He offers advice on how to select and use the right circular saw for the job. Visit our website and learn more about saving money on brand name discount tools.

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May 07 2008 | Circular Saws | No Comments »