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Small Diamond Grinding Wheels

Eternal Tools
  • D9: Fine (approx. 2,000 grit)
  • D46: Medium (approx. 325 grit)
  • D91: Coarse (approx. 140 grit)

Our small diamond grinding wheels are one of our most popular products and the cornerstone to many lathe turning operations.

8mm Arbor is not included.

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Use our diamond wheels on your lathe or mounted separately for: sharpening our tungsten carbide gravers, making your own spade drills, for resharpening tools and even bevelling glass. The resin bonded diamond surface ensures that they are very hard wearing and leave a beautiful and accurate finish. A high concentration of diamond provides a quick cutting surface without vibration so you can spend more time working and less time sharpening.

We offer 3 grades of diamond wheels; a coarse, medium and fine. The coarse grade is solely used for shaping hard materials and saves time when removing large stock amounts.

The medium grade is our all purpose, most popular, diamond wheel and will put a great edge on a carbide graver as well as sharpen our carbide spade drills. Lastly our fine diamond wheel is used for finishing, this is not always necessary but the better the tool the better the finish on your work.

How to use our Diamond Grinding Wheels

These diamond wheels are designed to be used dry and at slow speeds on your watchmakers lathe. A light oil may be used to help with lubrication but providing you allow the wheel to cut naturally and do not run the wheel too quickly this isn't really necessary.

It is important to use the full face of the diamond wheel when sharpening and also to only use gentle pressure.

TIP: Work across the full width of the wheel

Resin bonded diamond wheels can be quickly trued using a silicon carbide brake controlled trueing device. However, every effort should be made to mount the wheel to within the required concentricity limits before using the trueing device.

If used on the correct materials then the wheel should rarely require cleaning, but if necessary, this can be done with an Aluminium Oxide Stick.


Phenolic resin bonded diamond grinding wheel

  • Diameter: 50.8mm
  • Depth: 10mm
  • Bore hole: 6.35mm

Customer Reviews

extremely useful, gives a very nice finish
Excellent quality and prompt delivery.
Used them to grind a set of Tungsten carbide pallets with very good results. Wheels ran very true. Course wheel removed material quickly. Fine wheel left a surface requiring little additional finishing.

Questions & Answers

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I am learning clock repair with no engineering background so I apologise if this is a crazy question. The diamond wheel works so well for sharpening my carbide graver (though takes a very steady hand and some practice!) that I am tempted to use it for my HSS gravers. Will this damage the wheel? Opinion seems to vary when I ask around. Thanks for your help and good products. Bryan

bryan morland

HI Bryan, thanks for your kind words. We don't recommned using HSS on our diamond wheels because it can clog. However, if you intermittently use HSS and carbide then it isn't usually too much of a problem. 

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