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What to Look out for When Deciding on Diamond Router Bits
August 06, 2019

When looking for cutting tools that are necessary for defining profiles or polishing hard surfaces, such as granite-concrete objects, a diamond router bit should be the first method that comes to mind. These cutting tools are comprised of diamond grains fixed onto the functional areas of the tool.




When considering your options surrounding router bits, it is always important that you stay on top of the factors posing the largest impacts on the quality of your purchase.



With over 50 years of experience in grinding solutions, including router bits, we have written this article in hopes of aggregating our extensive knowledge into practical methods you can use from here on out when it comes to your router bit needs.



Router Bit Shanks


First on the list - pay close attention to the size requirements of your router bit shanks before diving in. Router bit shanks can be identified as the solid, cylindrical part of the bit that fit into the collet of the tool.


Diamond router bit shanks can typically be acquired in a couple of sizes - ½” and ¼”. The differences in these shank diameters can typically be seen in the cut, and perturbance that they undergo – with ½” shanks known for their smoother cuts, and higher stability (with less maintenance needed as a result).


Keep in mind that not all routers have the capacity for interchangeable bits and that router sizing must be appropriately selected.



Router Bit Cutting Edges


It is important to understand that a multitude of cutting edge materials can be utilised with your diamond router bit. We’ll be focussing on the two more common materials – high-speed steel (HSS), and carbide cutting tips.


Critical trade-offs between hardness and brittleness occur depending upon which material is used. For example, while carbide is typically used as profile bits for the cutter due being harder – allowing it to keep its edge longer - than HSS, it comes at the expense of being more brittle; always pay close attention when handling, and storing carbide to keep chipping of the cutter to a minimum.



Router Bit Quality


If you haven’t developed an eye for establishing the quality of diamond router bits from experienced visual acuity then, luckily, there are some clear cut signs that can aid in the selection process.


When selecting a high-quality bit you will want to ensure they are fitted with a carbide cutter that has a fine enough edge for your cutting needs, while also being thick enough for numerous sharpenings. Your carbide tip should be robust enough to be reground up to 15 times.


Buyers beware – the braze, responsible for securing the carbide to the body of the bit, should exhibit no unnecessary interstices; this can create an extremely dangerous environment to work in due to being more susceptible to failure, especially at higher speeds.


Lastly, look for bits incorporating anti-kickback design philosophies whenever possible. These router bits cleverly mitigate kickback occurrence by increasing mass so that the bit is less prone to biting and catching the material.



Routers You Can Trust


We provide an extensive array of diamond tooling equipment for your superabrasive needs –including diamond routers!


Our extensive array of diamond tools, blades, grinding wheels, and lapping compounds can be made-to-order for your specific working environments; able to effortlessly cut through a host of composites including, but not limited to fiberglass, PVC, and engineered stone.


Reach out to our team of experts and put the 50 years we have in the industry to work for you!

Our throughput has significantly increased since we transitioned over to diamond router parts.
Posted by: Donald | April 15, 2020, 6:31 pm
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