Mechanical piston drills using hooked up bits on drill rods and moving up and down similar to a piston inside a cylinder date from 1843. In Germany in 1853 a drill that resembled modern air drills was invented. Piston drills were superseded by hammer drills run by compressed air, as https://elliotkrvya.tinyblogging.com/safe-haven-assets-no-further-a-mystery-80177069