WoodRiver CBN Grinding Wheel
When I find a good product I tell folks about it; when I find an excellent product I sell it. This grinding wheel is one of those rare above excellent products I run across every now and then. I am so impressed by this grinding wheel that I replaced all the grinding wheels in my shop with this one. It is such an improvement on my old ceramic stone grinding wheels thats its almost unbelievable!
Here is what I love about this grinding wheel:
120-Grit, Cubic Boron Nitride (CBN) coated wheel, cuts significantly faster as compared to Aluminum Oxide or other ceramic wheels.
8" diameter x 1" wide, with 5/8" arbor.
Wheel balance is not an issue because the wheel is machined from solid steel plate.
Coated with CBN from edge to edge, as well as for a short distance down the face.
Solid steel wheel acts like a heat sink making tool overheating or burning much less likely.
CBN coating never loads up or requires dressing.
Economical: the CBN coating lasts for years under normal use
Cubic boron nitride, commonly known as CBN, is a man-made synthetic abrasive. CBN is made from cubic boron nitride grains bonded together by ceramic material. CBN is the second hardest material after synthetic diamonds.
The process of making CBN abrasive is similar to that of synthetic diamonds: scientists treat hexagonal boron nitride at high temperature and pressure to create cubic boron nitride and treat graphite in the same way to create diamond.
CBN is well suited for ferrous materials in grinding operations, as it will not carbonize when interacting with iron (Fe), as diamond abrasives may. Typically, CBN is used for grinding steel, cast iron, die steel, tool steel, super alloys, and in some cases ceramic materials.
CBN has several attractive characteristics that make it superior to diamond in grinding operations:
Withstands heat, especially during high-speed applications
Does not cause grit that can dull bits
Stays sharp and cool because it does not react with steel
Diamonds can also react with transition metals, limiting their usefulness for grinding certain materials. Cubic boron nitride is stable and does not tend to react unfavorably with standard transition metals.
CBN grinding wheels are made by electroplating CBN particles on steel, using electroplated nickel to hold the grit in place. A single layer of CBN grit applied to the surface of a metal disc can grind even the hardest surfaces and last for years.
5 stars - I ground a new base angle on my plane irons and several of my chisels. I easily ground them perpendicular to the edges. Holding 90 degrees wasn't as easy with old grinding wheel.
Have not installed as of yet but looks and feels like a quality product. Will review after using.
The slow speed grinder is an important tool for my woodworking. Working with hand planes, bench chisels, carving tools, and turning tools, I’m on the grinder almost daily. It is set up with Wolverine grinding jigs for speed and accuracy. Before replacing my wheels with the CBN wheels (120 and 180 grits), my biggest problem was overheating, or “bluing” the corners of plane irons, chisels, and gouges. To avoid this, I needed to work slowly, constantly cooling my tools in a jar of cold water. The other process that slowed me down was dressing the wheels. The CBN wheels are amazing. They are true and cool. The steel rims draw heat away from the surface and dissipate it without over-heating my tools. Hi he wheels never need dressing, and hold their perfectly flat shape. The 120 grit wheel works amazingly fast, enabling me to hollow-grind chisels and plane irons in a matter of seconds. The other day I wines up my adze, axe, and steel wedges to rough hue timber and the wheel worked fast and true. The 120 grit, when used with a very light touch, quickly puts a nearly polished edge on the bevels of my turning tools, bringing my lathe work to a new level; and it’s so quick and easy that I don’t hesitate to sharpen the tools at are slightest hint of dullness. This principle I learned through embracing Rob Cosman’s sharpening system tor my chisels and plane irons - using the Trend 300/1000 and Sharon 16000 grit stones for wiockly maintaining razor sharp edges. If sharpening is nearly risk-free, and very quick, it becomes a welcome pleasure rather than a burden. That’s what I have experienced with the CBN grinding wheels. They are Definitely worth the money! I have one suggestion for the manufacturer. Make a 180 or higher grit wheel with convex, rounded edges for the inside bevels of carving gouges. Those of us who have experienced the benefits Chris Pye’s inside bevel approach will buy them in a New York minute.