3''x 1/2''x 2/5'' Flat Diamond Grinding Wheel Grit 150 Grinding Hard Alloy Cutter, Glass, Tiles, Tungsten Sharpener and Ceramics for Grinder Cutter Tool,78x12.7x10mm

This 3" diamond wheel with a 1/2" arbor hole fit perfectly on my inexpensive Harbor Freight 5" bench grinder. The wheel is very heavy duty (weighed 12.6 oz), totally solid with a precision polished 1/2" hole for mounting. It ran so smoothly, I thought at first the wheel wasn't turning! I use it exclusively to sharpen my TIG welding tungsten rods while rotating the tungsten at the slowest speed of my battery drill. The result is almost a polished tip with straight longitudinal lines. Perfect! Takes about 10-12 seconds to sharpen each tip with just light pressure. Also, since it is a diamond wheel, there isn't any extra debris like you get from a glandular sanding disc. FYI, I turned the guard on the grinder straight up to see the smaller 3" wheel better. Works great!

Decent shipping, good value and so far I sharpened 20 carbide stump grinder teeth and it's going strong!

This is a fantastic wheel for sharpening TIG tungsten, wheel looks brand new after sharpening, if you have a small bench grinder, this is absolutely the way to go. You will not be replacing the wheel after many many sharpenings I’m sure. Wheel is well balanced, and as you can see it is significantly less expensive than the McMaster Carr alternative diamond wheels. Would buy again.

I have to Fabricate a space on the lathe for this to get it to sit right but that's no biggie lol. My main concern isn't how small this wheels is as it does say so in the Dimensions. My biggest concern is how long this wheel will last as I've noticed a Drop in performance from its first few uses using it to sharpen my Tungsten and some Carbide cutters in the workshop. I feel that this is a Good purchase good value but will it last? I'm dropping two stars for the drop in performance. I may later order another wheel but it does work........... whilst it lasts.

Fit my machine perfectly. Not overly expensive given I expect it to last a while..

I bought this 3 inch grinding wheel to sharpen my Tig welding tungston. Ordered it one day and got it the next. My Harbor Freight 3 inch grinder had to be ground just a slight bit inside for the wheel to fit but slid on using the original sleeve. Works perfectly. Very happy with Amazon Prime and this company supplying the wheel.

Great value. I bought this to sharpen my tungsten electrodes. Works great and very fast

This thing tears thru tungsten without it leaving even a mark on the wheel. Looks like it will literally last my lifetime

Perfect to grind TIG electrode

solid, precise, construction 150 grit diamond, 1/2" bore, as described by vendor. arrived on time.