Главная > Главная > Товары > Straight Router Bit. Категории магазина > Straight Router Bit >. 15 найдено. Отменить выбор Отменить выбор. Router Bits at Rockler: Beading Bits, Dovetail Bits & Cabinet Bits. Quality Router Bits For All Your Woodworking Needs. Find a Large Selection of Edge Forming, Flush Trim, Molding Bits, Beading Bits and More at Rockler. Woodworking Hand Tools. Woodworking For Kids. Wood Tools. Woodworking Workbench. Woodworking Techniques Woodworking Crafts Woodworking Projects Woodworking Classes Popular Woodworking. Finger-Joint Router Bit. Router Bits – широкий выбор товаров из этой категории вы можете купить с помощью всемирно известного зарубежного онлайн-аукциона. Вы можете приобрести интересующие товары от знаменитых брендов по доступной цене и с возможностью быстрой доставки в любой уголок страны. Router Bits на Ebay – для тех, кому важно качество во всем. Grizzly Unbranded Vermont American Irwin Ryobi Hitachi. Router Bits Router Bit End Mill. Home Articles Spiral Router Bits vs. Same Day Shipping Find a Store. Solid-carbide spiral bits are becoming increasingly popular because they make a very clean cut. A down-cut bit sends the chips downward; an up-cut bit sends them up to ward the routre. Eagle America, ; eagleamerica. These big three have been joined by such specialty spirals as bearing-guided up-cut and down-cut flush-trim bits for template work and combination evacut straight router bit with short up-cuts and longer down-cuts for chip-free mortises.

Two flutes ground around the body of a spiral bit smooth vibration by spreading the cutting action over a longer edge. With their drill-like point, spiral bits are also better for plunge-cutting. The new solid-carbide spiral bits come with some disadvantages. The first is that the cutters are expensive. But because most spiral bits are ground on the tip end of the flute, somewhat like a drill, you can plunge straight down as far as you like, without stopping.

On most straight bits there is a space above the web, between the cutters, where no cutting takes place during a straight plunge because there is no cutter overlap. Chuck a straight bit into your drill press and plunge it into a piece of wood. To go any farther, the bit has to abrade the wood away in this middle area. You just have to sweep the router while you are plunging. Solid-carbide spiral bits are becoming increasingly popular because they make a very clean cut.

But they have many limitations compared to the straight bits that have been popular for Quarter Inch Straight Router Bit Not years. All spiral bits make clean cuts. This veneered plywood shows the effects of the three types of spiral bits on the top and bottom edges. The three basic cutter configurations for spiral bits are up-cut, down-cut, and a combination of the two, known as a compression bit.

A down-cut bit sends the chips downward; an up-cut bit sends them up to ward the shank. On a router table, all direc-tions are reversed. Besides directing the chips, the advantages of these configurations are best illustrated by the quality of cut, especially on veneered plywood see the photos above. A down-cut bit will leave a clean edge on top but a ragged edge on the bottom; an up-cut bit will accomplish the opposite.

This is great until you want to cut a dado with no tearout on the face. A down-cut bit will leave a clean top edge, but it sends the chips downward, into the dado where they have no place to go. You can make this cut, but you have to take it slower than usual to give the chips a chance to clear.

For woodworkers who work with A-grade veneers on both sides of the stock and must have a clean edge top, bottom, and middle, the compression bit is a good choice. It has an up-cut configuration on the tip of the bit and a down-cut spiral ground on the shank.

By lining up the bit just right, you can get a superior edge across the entire thickness of the wood. Router-bit manufacturers have difficulty making solid-carbide spiral bits with cutting diameters larger than their shanks.

Straight bits, on the other hand, go through dozens of fractional sizes, all the way up to 2-in. Depending on the job you have in mind for your router bit, straight bits also come in a variety of cutter lengths. So you can buy close to exactly the length of cutter you need.

Straight bits also have a huge advantage over spiral bits when it comes to template routing, because you can buy them with guide bearings.

And those bearings can be mounted on the tip of the cutter or on the shank of the cutter, depending on your needs and your template. The bearings are made for a variety of cutter diameters and lengths. With their superior edge cut, spirals make great template cutters when used with collar guides.

But when it comes to bearing-guided bits, spirals seem to be available only with bearings mounted on the end of the bit. Shank-shod, bearing-guided, solid-carbide bits spiral bits with the bearings on the shaft end of the bit , which would permit template routing with the template on top of the work and trim cutting through only part of the work face, are not available. Some woodworkers like to sharpen their straight bits, although I find it difficult to get it right and always send out my bits for sharpening.

Carbide-tipped straight bits usually have enough carbide thickness to be reground four or five times, and the tech- nology to do so is common. A few services claim to be able to sharpen spiral bits. To me, this translates into a substantial loss.

Spiral bits might stay sharp longer than straight bits, but even so, the cost of using spiral bits will always be higher. Spiral bits work incredibly well in the production environment and especially in CNC computer numerically controlled router industrial applications.

But in a hand router, their use sometimes imposes unusual risks not associated with the equivalent or bigger straight bits. The down-cut spiral bit's screw-driven forces are sufficient enough to pick the router up and twist it out of your hands—with no warning.

I know, because it has happened to me. On end grain the spiral bit is getting even more traction, so the risk is even greater—a pity, too, because a sweet end-grain finish is attractive. The up-cut spiral bit can have the opposite effect. It wants to pick up the work. Like a coach-class airline ticket, a standard straight bit gets you where you need to be, and for a lot less money. So why pay for the upgrade?

All spiral bits share one advantage over straight bits: Their angled cutting edges slice, instead of chop at, the wood. This leaves a cleaner cut because a portion of the cutting edge constantly touches the wood. And unlike straight bits with carbide cutters brazed to a steel body, spiral bits are all carbide. That lets bit-makers use wear-resistant carbide formulas that stand up better to abrasive glues and resins in plywood, particleboard, and medium-density fiberboard.

Most spiral bits use one of three flue patterns descibed on the next slide. Picture the left-to right rise of the spiral. Like a twist drill bit, these bits quickly evacuate chips from deep cuts. They lift the veneers on sheet goods when making plunge cuts, but push down on veneer when used in a table-mounted router with the "good" side up on the workpiece.

These spiral bits press veneer down as you make plunging cuts for dadoes, rabbets, and grooves. Be careful: The downward force can lift a handheld router off your workpiece.

Up- and down-cut flutes meet in the middle of the bit below to compress veneer on both faces of a panel tightly against the substrate.

These big three have been joined by such specialty spirals as bearing-guided up-cut and down-cut flush-trim bits for template work and combination bits Straight Cut Router Bit With Bearing Review with short up-cuts and longer down-cuts for chip-free mortises. On a combination bit, the down-cut and up-cut flutes both press veneers against the particleboard substrate. Spiral bits, with their shearing action, make sense for hard-to-machine woods with complicated grain patterns, such as curly maple, and for veneered sheet goods.

In addition to their lower price, straight bits work best on wide cuts. So hold onto your wallet, and push your straight bits to their limits. Then use our chart below to choose the best bits for your job. Sources The following companies offer a variety of spiral router bits: Amana Tool, ; amanatool. CMT, ; cmtusa. Eagle America, ; eagleamerica. Freud, ; freudtools.

Lee Valley, ; leevalley.

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