What Are Those Small Glass Tubes With Tiny Steel Balls? A Look at a Fascinating Precision Tool
If you’ve ever explored an antique shop, visited a flea market, or sorted through a box of old tools inherited from a family member, you’ve probably come across an object that leaves you wondering what it was once used for. Family Some vintage tools are easy to recognize. Hammers, wrenches, hand drills, and measuring tapes have changed…