Avler 1/2 Inch (.50 Caliber) Steel Bearing Balls (Pack of 100)

I used these in a classroom demonstrator as the electrons around a nucleus. They are consistent, nicely finished, and suit my purpose perfectly. I cannot tell you they would actually work as a ball bearing under load.

These are amazing and do the job for sure. Great deal. Great product.

What do you get? A box filled with a bag that's filled with somewhat oily balls. I assume this oil is there as a rust preventative. I bought them to use as weights for 3d printed projects/other DIY uses where I want to add some heft to an object. They're definitely steel since they stick to magnets and as functional as a magnetic steel ball can be. Measured a few at random out of the bag, and they all read 0.4995"-0.5000".

Works for my projects!

They barely fit the chamber they a little big you have to force it into the slots.

Great quality.

So let me start off by saying I do not intend to use these as ball bearings or sling shot ammo They are a decent size and have some weight to them good for what I need they come with a little oil in the bag that was a pleasant surprise just have to dry a few off before putting in my pocket I do wish there was more but I can't really complain i don't plan on having to get rid of them quick

I needed to find a solution for a costly alternative. When scuba diving, at times you need to get the attention of others underwater. There are solutions on the market for ~$30. These solutions are much more scientific than my solution although my solution meets my needs. My dive rattle is simplistic. I made it small bc real estate while diving is of the premium and, in this case, small creates enough sound to be heard (without creating noise when not in use). My rattles are 2” or 3” long. Use 2 end caps and 3 ball bearings per rattle. If you have a friend that has the cutting tool, glue primer and glue, (I did) your cost is ~$3/rattle. (Both the 3” and 2” rattles made similar noise underwater.)

Spot on

These are exactly the right balls for gravitrax. Finally enough! They haven't rusted so far, so a large number of extra balls for a great price.

Yess utile et adéquat. Qualité conforme.

These are not .50 cal They will NOT fit any .50 firearm. They do work perfectly with a catapult though.

Ne pas acheter pour arme a air cal .50 ce n'est pas compatible. Seulement pour slingshot ou autres mais ne rentre pas dans le chargeur .