http://www.shutterstock.com/pic-182374970/stock-photo-close-up-vernier-caliper-measure-diameter-of-stainless-steel-flange.html?src=pp-same_artist-182374976-1&ws=1
Author
James Lewis
Fan of making things beep, blink and fly. Created AddOhms. Stream on Twitch. Video Host on element14 Presents and writing for Hackster.IO. Call sign KN6FGY.