Safe, Fault-Free and Efficient Cutting: Buy High-Quality Heat-Resistant Router Bits

At some point, every chippie, tradie and hobbyist who enjoys working with wood turns to a router for the perfect cut. It takes precision bits, however, to give these high-powered wood cutters the highly specialised bite they need to get the job done.

From basic cutting, coring and channeling functions, to intricate bevelling and shaping operations, high-precision bits can make all the difference between perfect joinery and edge-work, and costly miscuts that are as unsafe as they are unsightly. Heat buildup is their biggest drawback though, which is why it behooves woodworkers to invest in cutters that won’t let the heat get them down.

Setting High Heat-Resistant Expectations for Router Cutters and Bits

Let’s be honest: when it comes to cutting snug dovetails, perfect inlay channels and custom wall and door mouldings, routers are the woodworker’s tool of choice. But with these big-watt power tools as capable of destroying working pieces as they are of reshaping them, it takes high-quality, heat-resistant router bits to produce consistent, high-quality cuts every time.

From the wide selection of bevel angles found on chamfer bits, to the multi-bearing flush trim bits with replaceable inserts, there are literally hundreds of styles and sizes of router bits for sale for all types of fixed-base, plunge, and benchtop routers. Choosing the right router bit, however, is as much about ensuring the working piece is protected as it is about piecing the final product together. That means router bits for wood are also expected to:

• Not tear or burn the surface of the working piece;
• Retain their edge so that there’s no chipping, shearing, or splintering while cutting;
• Reduce the amount of finishing work that needs to be done after cutting;
• Protect the router from any unnecessary damage as a result of slippage; and,
• Protect the individual operating the router from personal injury.

Woodworkers should always be mindful that using low-quality router blades, or pushing blades beyond their performance threshold dramatically increases the likelihood of ruining an otherwise perfectly executed project. And in the same way that all wood working router bits are designed to perform different styles of cuts, they’re also engineered to work with different hardnesses of wood, all within different cutting temperature ranges. This is where the performance of router bits comes down to one specific attribute: material.

Bit Materials That are Built to Beat the Heat

Although it’s easy to base a conversation about woodworking router bits on bit types, the fact is, key elements like bit diameter, maximum turning speed and even the cleanliness of the cuts all come down to material hardness and heat resistance. Heat buildup is the enemy of all cutting tools, and everything from the acceptable wear and feed rate that can be expected from a router cutting blade, to its effective RPM range are affected by it. That’s why a woodworker’s primary focus when setting out to buy router bits has to be on materials, with a clear preference toward the following:

• Durable high-speed steel (HSS) bits. Although low-density HSS bits are generally the least expensive, they offer perfectly acceptable heat-resistance and easy drilling and cutting characteristics for softwoods like fir, cedar and pine.
• Long-lasting carbide tipped bits. Carbide tipped wood router bits are more expensive than their HSS counterparts, but they possess longer lasting hardness and increased heat-resistance that’s ideal for profiling and shaping hardwoods like oak, walnut and cherry.
• Full-strength, full-carbide bits. In addition to being the most expensive, full carbide router cutters and bits offer maximum hardness and heat resistance, and are the ideal choice for cutting and trimming laminates and composites, as well as hardwoods.

The fact is, unwanted heat buildup increases the risk of router bit cutting edge problems, including unanticipated chemical breakdowns within the material that can lead to catastrophic bit breakage. This is an especially important consideration when a router blade has received a hardness or durability coating like TiN (Titanium Nitride), TiCN (titanium carbo-nitride), or DLC (diamond-like carbon). This is where non-material factors like the anatomy of router drill bits for wood also need to be scrutinised for their ability to prevent destructive heat buildup.

Router Bit Anatomies Designed to Keep Temperatures Down

When it comes to avoiding degradative heat stress, router bit anatomy deserves just as much attention as the material. And the fact that router bits only consist of four basic components illustrates just how important each one is for keeping bits strong and safe while keeping temperatures down:

• The shank. Router bit shanks typically come in 1/4″ and 1/2″ diameters, with larger shanks (together with the use of collets that can accommodate smaller diameters) being the preference due to their beefier construction and greater cooling surface.
• The body. The material that a bit’s body is forged from invariably has the biggest impact on its cooling capacity. That’s why woodworkers should always use the largest-bodied bit possible to take advantage of the largest possible area of cool air exchange.
• The finish coating. While coatings like TiN and DLC are used to reinforce a bit’s durability, bits that have received a self-repairing Titanium Aluminium Nitride (TiAIN) coating offer an almost infinite degree of lubricity and friction protection, and are engineered to withstand operating temperatures up to 900°C.
• The blade. Although every router cutter blade is designed to perform it’s own shaping, trimming and cutting work, blades that are fluted especially to encourage larger chip evacuation are inherently better at discharging heat than blades that remove smaller wood particles.

Make no mistake: heat is an unavoidable byproduct of wood cutting. That’s why, when possible, woodworkers should make up their minds to only buy router bit sets that are designed to withstand the temperatures produced at the high-end of their particular cutting activities. It wouldn’t be feasible to expect local tool suppliers to stock only the most thermally resistant bit, though. That’s why woodworkers can’t afford to ignore the advantages that purchasing their heat-resistant router bits online has to offer.

Ordering Heat-Resistant Bits Online Keeps Purchase Prices Low

There’s no getting around the fact that premium-quality, heat-resistant router bits can be expensive. And as complex combinations of grinds, materials and coatings can easily push bit prices into the hundreds of dollars, the reasons for woodworkers to buy router bits online are more compelling than ever:

• Shopping convenience. The convenience of shopping online allows woodworkers to view and compare hundreds of bits from manufacturers like UJK, Carbitool, and Hammer Roo all from one location and arrange for delivery of their router bits Australia wide.
• The widest possible bit selections. From unusual bit sizes and cutting diameters, to custom cutter types and geometries, premium-quality online retailers offer the widest selection of cutting tools available to woodworkers.
• Most competitive pricing. Online retailers have the ability to purchase router bits and accessories far cheaper than woodworkers can through any other means, allowing them to receive considerable savings that ordinary retailers can’t offer.

Ultimately, it doesn’t matter if a woodworker is looking for a single standard chamfering router bit for sale or a complete set of dovetail bits with a jig, online is the smart, economical place to purchase high-quality, heat-resistant cutters.

The Final Word

At the end of the day, no matter if it’s a palm-sized portable or benchtop behemoth, routers are undoubtedly among the most versatile tools at a woodworker’s disposal. To be their most effective though, they need cutters and bits that excel at resisting and retaining destructive heat.

High-quality, heat-resistant bits for routers are the right choice for woodworker who want safe, fault-free cutting. And with so many different bits available online, it’s never been easier, or more affordable for them to get precisely what they need.