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

Lots of balls in lots of sizes. Great for projects or for dropping on the floor to cause yourself or someone you dislike great distress.

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

Quality and works Great .

Now I have a life time supply of multiple sizes of balls…1 size perfectly fit the ball detent on my Milwaukee ratcheting screwdriver.👍🏻

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.

I really like the packaging of these balls!!

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.

Item as described. Fast shipping!