CBN Grinding Wheel to Sharpen High Speed Steel Turning Tools | Woodworking

A Cubic Boron Nitride (CBN) grinding wheel is a premium sharpening tool for high speed steel (HSS). It’s made of a material that is almost as hard as diamonds. I talk about the benefits of a CBN grinding wheel as I unpackage and install this on my bench top grinder.
Beware of bargain CBN grinding wheels as they can be frustrating to try and properly balance. I bought my 80 grit 6 inch by 1 inch CBN Grinding Wheel at Lee Valley Tools, here’s a link - www.leevalley.com/en-ca/shop/...
What I like about using a CBN grinding wheel is that it cuts fast and doesn’t heat up the metal that can cause damage like a traditional bonded grinding wheel. A CBN grinding wheel doesn’t wear down like a bonded grinding wheel so it retains its shape. In my opinion, it’s worth the investment if you buy a quality product.
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#sharpening #turning #woodworking

[@richardgerhard7559]

Nice simple video. Will be looking forward to the video on the Wolverine Sharpening System. And watch the review you give it.

[@HomeImprovementWoodworking]

Thanks Richard. The Wolverine jig is coming up in a few weeks. Scott

[@Aelric78]

My shop wish list grows as I watch more woodworking and making channels...

[@HomeImprovementWoodworking]

Yes, it can be tempting to buy all the cool tools out there. Thanks for watching! Scott

[@SQLKC]

Yep a slow-speed grinder would be better, the rikon grinder you can catch on sale for around 100 bucks. Just keep a glass of water near to cool down the tool when sharping.

[@HomeImprovementWoodworking]

Thanks for the tip Mark! Yes, a slow-speed grinder would be better. The CBN wheel keeps the metal much cooler though and it cuts so fast. 3-4 seconds and I'm done. Cheers. Scott

[@zeplin4078]

Hi Scott, I must say the grinding wheel also looks stunning.

[@HomeImprovementWoodworking]

Yeah, it's added some bling to the workshop hasn't it? Cheers. Scott

[@befrankpls]

Very informative video. Will help me in the run. Keep it going and a I would like to see more of your videos. Best regards from Antonio Goa India

[@HomeImprovementWoodworking]

Thanks for the feedback. I'm glad to hear you found this useful! Scott 🇨🇦

[@steven6068]

Enjoy your videos. Keep them coming!! Is your grinder a low RPM grinder?

[@HomeImprovementWoodworking]

No, I don't have a low-speed grinder. That would be better for sharpening, but I bought this 20 years ago and didn't think it was worth replacing with a new one. Thanks for your encouragement! Scott

[@smallblockchevy1022]

That wheel is made from "cast" steel? Not from just solid steel round stock?

[@HomeImprovementWoodworking]

Sorry, I don't know the details on how these wheels are manufactured. You would have to ask a tool company who sells these. Scott

[@MrAshshort]

hi Do yuo have a video of the wolverine jig in action, i can't seem to find any in your videos.

[@HomeImprovementWoodworking]

Here's the link for the video ruclips.net/video/-Yc7VvSV6D0/видео.html

[@poseidon.-]

awesome.
what Grit you use in that diamond grind

[@HomeImprovementWoodworking]

This one is an 80 grit, which is very aggressive. I've since installed a second wheel that's 180 grit, which is better for touching up blades

[@poseidon.-]

@@HomeImprovementWoodworking ah great, thank you for the reply. I'll use it for my reference.
best regards from Indonesia 🇮🇩.
🙏

[@davidgolden6068]

I wonder if these would work on a surface grinder

[@HomeImprovementWoodworking]

This specific wheel is meant for a grinder. I think you would need a wheel with a larger wheel bore for a surface grinder.

[@bobshool1237]

I don't think you need a cover on CBN Wheels.

[@kerrysaunders3685]

Is that a 6 inch wheel? If so won’t it give you a hollow grind?

[@HomeImprovementWoodworking]

Yes, this is a 6-inch wheel. Both an 8-inch and 6-inch produce a slight hollow grind, but that's not an issue. The leading edge of the tool is what's important for sharpening. I buy my CBN wheels at Lee Valley Tools to I ensure I'm getting a good quality wheel, and the 6-inch wheel is about half the cost of an 8-inch wheel. I hope that helps. Scott

[@kerrysaunders3685]

Thank you Scott and great video. 👏

[@craigdouglas9979]

You cant produce the correct bevel shape on a skew or a gauge with a 6" wheel! 8" is minimum, 12" is better. If your tools work it will be accident not by design.

[@HomeImprovementWoodworking]

I don't understand how the radius of the grinding wheel creates a correct or incorrect bevel. Can you explain? Scott

[@craigdouglas9979]

@@HomeImprovementWoodworking The angle of the bevel must be increased from optimum due to the decrease in radius of the grinding wheel. AS the radius of the wheel decreases the bevel goes further into the body of the tool leaving the leading tip unsupported by sufficient metal making the tip frail and very difficult to grind. To be fair as grinding technology has made significant changes in recent times short bevels have been tolerated due to fact that to grind beyond an 8" wheel is prohibitively expensive. In saying that, 6" wheels are not suitable. Not to put too finer point on it (pardon the pun) you are clearly self taught and I suggest you do not pose your supposition as fact.

[@craigdouglas9979]

@@HomeImprovementWoodworking No matter what size wheel you have yo can always grind it incorrectly. With a wheel too small you have no hope of getting it right.