Common circular saw blades include: carbide-tipped combination blade (A), hollow-ground planer blade (B), a steel alloy rip blade (C), plywood blade (D), and crosscut blade (E).
The success of any woodworking project depends on smooth, precise cutting of the individual pieces-a skill that begins with the choice of the right saw blade for the job.
Circular blades Circular blades for tablesaws, radial-arm saws, and circular saws are first categorized by diameter, ranging from 6″ to 12″. Generally, you’ll want to use saw blades that match the size specified by your saw, although most saws will let you mount smaller diameter blades.

Blade shape: The next important classification is based on the overall shape of the blade and its cutting teeth. For smooth cutting without tearout or binding, all circular blades are shaped so that they are slightly thicker at the outside diameter near the cutting teeth than they are in the center. There are three basic ways to achieve this effect: by “setting” the teeth at a slight outward angle to the blade; by flattening the ends of the teeth or attaching wider carbide steel tips; or by “hollowgrinding” the blade so the inner area is thinner than the outer portion of the blade.
Type of cut. Blade designs also can be categorized according to the types of cuts for which they are best suited, or by the kinds of materials they cut best. These classifications are determined primarily by the shape, size, and number of cutting teeth, as well as the basic shape of the blade itself. Combination blades feature sets of four or five beveled, crosscutting teeth that alternate with straight, ripcutting “raker” teeth. Planer blades, sometimes called precision-trim, give glass-smooth, precise cuts for fine cabinetry. To minimize tearout, they are usually hollow-ground, and have teeth with little or no angle (set) to them. Deep gullets spaced every four or five teeth help the blade dissipate heat, clear chips, and prevent it from wobbling. Rip blades have fewer, larger teeth than crosscut blades. The teeth are hooked forward sharply and are straight at the tips to quickly remove wood fibers. Plywood blades, sometimes called panel blades or trimming/parting blades, have many small teeth, and sometimes are designed so the outer rim is thinner than the center of the blade. This design gives smooth cuts with minimal tearout. They are used for cutting plywood, veneer, and plastic laminates.
Three different shapes for circular blades include: the hollow-ground blade (A), the set-tooth blade (B), and a carbide-tipped blade with tips brazed onto the tooth face |
Crosscut blades generally have medium-sized teeth spaced close together. The tips often are angled (set) to help the teeth slice through wood fibers without tearing. Specialty blades: A variety of specialty blades is available for cutting materials other than wood. Abrasive blades made of silicon carbide let you cut ceramics. Aluminum oxide blades are used to cut metals. Metal blades coated with nonstick Teflon work well for cutting green wood, treated lumber, or glue-saturated materials like particleboard.
The carbide-steel revolution Saw-blade manufacturers are now offering a growing number of blades that feature carbide-steel cutting tips bonded to steel alloy teeth. Carbide-tipped teeth are available for most types of saw blades-crosscut, ripcut, combination, and precision-trim. The different types of carbidetipped blades look very similar at first glance, because the teeth themselves are shaped much the same. The difference between combination, ripcut, and crosscut blades lies in small variations in the shape of the carbide tips, so it’s important to check labels closely to ensure that you select the right saw blade. Although they are more expensive than steel alloy blades, carbide-tipped blades last much longer, and the performance is so good that many woodworkers will use no other type of blade. Don’t try to sharpen carbide-tipped blades yourself, though; the tips are so hard and brittle that only a specialist with the proper tools can do this job.
Bandsaw blades The best blades for bandsaws use “bimetal” or “flex-back” construction in which a thin strip of hard tool steel is bonded to a backing strip of more flexible spring steel. The result is a blade that is much less likely to break than older blade types. Avoid bandsaw blades advertised as “soft-edge” blades that can be resharpened. Trying to sharpen bandsaw blades is usually a waste of effort; buy “hard-edge” blades and simply replace them when they get dull. Size: Bandsaw blades are available in several widths, ranging from ~/s” to 4″. Wider blades will give you a straighter cut, making them a good choice for resawing lumber down to a smaller stock. Narrower blades are best for cutting curves. Tooth shape: Bandsaw blades come in three different tooth shapes. Regular-tooth blades are the standard for general use. The teeth have a shallow hook, producing a relatively smooth cut in most woods. Skip-tooth blades have extra long notches (gullets) between teeth for better chip removal and faster cutting.
Typical bimetal jigsaw blades include: a 6 TPI blade with beveled (fleam-ground) teeth for very fast cutting in all woods (A), a 24 TPI metal-cutting blade (B), a 10 TPI fine-cutting wood blade (C), and a 6 TPI fast-cutting wood blade (D). Bandsaw blades use one of three blade shapes: standard-tooth blade (A), hook-tooth blade (B), and skip-tooth blade (C). All three types of blade are available in widths ranging from 1/8″ to 3/4″. |
The cut made by a skip-tooth blade, however, is rougher than that made by a regular-tooth blade. Skip-tooth blades are especially good for cutting very thick stock. Hook-tooth blades have teeth with a sharp downward angle. They cut very quickly (though roughly) and are good blades for cutting very hard materials. Specialty blades you can use on your bandsaws include knifeedge blades to cut fabric, leather, and cork, and abrasive bands that let you use the bandsaw as a loop sander.
Sabersaw blades The best Sabersaw blades, like the best bandsaw blades, use the bimetal design that bonds hard tool steel to a more flexible strip of spring steel. Sabersaw blades for cutting metal generally have small, closely spaced teeth set at a shallow cutting angle. Woodcutting blades have larger teeth set at a sharper angle. Type of cut: Sabersaw blades are usually categorized as fast-cutting or smooth-cutting, depending on the number of teeth per inch (TPI). Fast-cutting blades for wood have fewer teeth per inch (usually 5 to 7) and give a rougher cut, while smooth-cutting blades for wood have more teeth per inch (10 to 15). Blade width: Sabersaw blades are commonly available in standard widths (about 5/16″ wide) and scrolling widths (about 3/16″ wide).
Specialty blades available for sabersaw include carbide-coated blades for cutting ceramics and fiberglass, and knife-edge blades for cutting leather and rubber.