Drilling the small hole in the throwbar to connect a switch machine or ground throw to your finished trackwork is made easy with this palm sized hand drill. (Sometimes called a Pin Vice.) Each drill includes two collets that can hold drill bits from 0" to 3/32" in diameter
Small drill bits are fragile, so having precise control over the bit is a requirement to avoid breaking the drill bit. To use the tool, simply lock the drill bit into the collet, and gently twist the bit with the palm of your hand.