Tanstic 330Pcs 16 Size Metric Precision Steel Bearing Steel Ball Assortment 1mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm

Works as advertised with plenty of options to choose from. I use it to replace the bearing on my honey extractor. So far, after a year, no rust and works as advertised. Great value for the money.

Fantastic set with a great storage case. Great assortment for fidgets that need replacement pieces. Would buy again.

Meets all needs

Excellent for the price, the only complaint is some of the balls are useless, very small

Needed a 3.5mm ball for my Dewalt DCF809 since it's chuck survicing kit came with wrong size. This kit more than paid for itself already with just a single ball used. Invaluable!

Here we are back in the workshop building up our supply of parts for 3d printed toys. Of course we need metal balls for various toys and gadgets. These are smaller than you'd use on a normal sized marble run, but plenty of things to build that utilize small metal balls. I almost enjoy looking at all the parts as much I do building things with them.

The plastic parts box comes with a variety of small metric ball bearings.

Had a little mishap as I opened the box, none of the bearings fell out, but became displaced inside the box. I decided to reorganize and cut flexible magnets to hold them in their box better. As I did so, I came to find that I did not get the full count of each size of magnets. Usually 2-3 bearings short in each size from 5.5mm and smaller; this is why I am giving it a 3. That said, the ball bearings were pretty much on the money to within 1 or 2 100ths of a mm as measured on my digital caliper to put them in the correct box.