I'm currently a Machinist, at first I used different equipment to check the parts I made, but when I used Mitutoyo's equipment, I didn't use other equipment anymore. Because Mitutoyo is very good, accurate and durable. Most of my tools are bought on EBay, the price is also cheaper, so about 2 years ago, I practiced buying and selling on EBay measuring equipment. Mitutoyo about the convenience industry for those who love this profession, because I also love it. If you have a need, please visit my store to see if there are any items that satisfy you, my store includes Digital Micrometers, Calipers, Bore Micrometer, Thread Micrometer, Depth Micrometer...... Thanks!