18 Inch Carbide Tipped Saw Blades

Eighteen-inch carbide-tipped circular saw blades are built for the heavy machines in your shop — large sliding table saws, gang and straight-line rip saws, radial arm saws, beam and panel saws, double-end trim saws, and pallet recycling lines. At this diameter the right blade is rarely a one-size-fits-all combination disc; it’s matched to the material and the cut. We stock a full 18″ lineup across both of our brands so you can spec by application, tooth count, grind, kerf, and bore.

Our hero line is LORNA Industrial, our German-engineered premium blade for shops that want the longest run time between resharpens and the cleanest possible finish. Alongside it we offer Popular Tools, our Taiwan-built value line, with deep 18″ coverage in nearly every grind and tooth count. Lead with LORNA where finish and blade life pay you back; reach for Popular Tools when you want a proven workhorse at a sharper price.

Cutting aluminum and non-ferrous metal

For aluminum, brass, bronze, copper, and ACM/composite panel, you want a triple-chip grind (TCG) running on a negative hook. The negative hook keeps the blade from grabbing or climbing in soft metal, and the TCG tooth clears the chip without smearing. Our 18″ non-ferrous blades run from 40 teeth for fast extrusion cut-off up to 120 teeth for a near-polished edge on thin-wall tube and trim, with both standard 1″ bore and 1-1/2″ bore options for larger arbors. These same TCG blades are an excellent choice for thicker plastics, since the geometry is identical.

Cutting pallets, recycled lumber, nails, and staples

Demolition and pallet recycling is brutal on a blade — embedded nails, staples, grit, and the occasional screw will chip a standard tooth instantly. The answer is a tough, impact-resistant carbide on a nail-rated grind. Our 18″ pallet blade uses a UNI-TCG tooth with a heavier plate and impact-grade carbide that absorbs fastener hits and keeps cutting where a fine-finish blade would fail. Fewer teeth and a robust gullet clear the rough, dirty material fast.

Crosscutting clean lumber and general-purpose work

For clean hardwood and softwood — trim, furniture stock, dimensional lumber — an alternate top bevel (ATB) tooth gives you crisp, splinter-free crosscuts. We carry 18″ ATB blades from 40-tooth combination grinds that both rip and crosscut, up to 120- and 140-tooth crosscut blades for the smoothest finish on quality stock. If you cut a mix of solid wood and man-made panel, a 60- to 80-tooth combination blade is the versatile middle ground.

Straight-line and glue-line ripping

Rip-first work calls for a flat-top grind (FTG). The flat raker tooth powers through solid wood with the grain and leaves a square, glue-ready edge straight off the saw. Our 18″ rip lineup includes flat-top straight-line rip blades, glue-joint rip blades for ripping stock that goes directly to the clamp, and gang-rip configurations with the larger bores and 9/16″ pinholes that machines like the Diehl straight-line rip require. Lower tooth counts and deep gullets feed fast and run cool on long rips.

Radial arm saws

Radial arm saws need a blade with a negative hook angle. Pulling the blade through the cut, a positive-hook blade tends to self-feed and climb — a safety and finish problem. Our 18″ radial arm blades use a negative-hook ATB grind that holds the saw steady through the stroke and leaves a clean crosscut. They’re available in 60- and 80-tooth versions to match how fine a finish you need.

Plastic, acrylic, melamine, and laminate

For acrylic, polycarbonate, PVC, and other plastics, a TCG or a triple-chip variant prevents melting and chipping; thin acrylic and vinyl sheet under 3/8″ cut cleanest on a low-angle LR (left-right) grind that shears rather than scrapes. For double-sided melamine and laminate panel, a high-alternate-top-bevel (Hi-ATB) tooth scores both faces chip-free. We carry 18″ blades in each of these grinds for shops running specialty material.

How to spec an 18-inch blade

An 18″ blade is identified by four hard specs working together: diameter (18″), bore (most run a 1″ arbor; some non-ferrous and panel machines use 1-1/2″ or larger with pinholes), tooth count and grind (driven by material and finish), and kerf and plate (heavier kerf for impact and big rips, thinner kerf to save material and motor load). Pin pattern matters on panel, beam, and gang-rip machines — if your saw uses drive pins, match the pattern exactly. If you’re unsure of any of these, send us your saw make and model and we’ll confirm the fit.

All of our aftermarket blades are made to fit the machines named on this site. Brand and machine names are referenced for fitment and identification only; they are the property of their respective owners, and we are not affiliated with or endorsed by them.