Machinists, tired of crooked hand-tapped threads ruining your parts? This MT2 shank tap guide is the secret weapon you need. It's a simple but brilliant tool designed to keep your tap perfectly aligned with the hole. Here's how it works: The main body has a Morse Taper 2 (MT2) shank, so you can pop it directly into the tailstock of your lathe or the spindle of a milling machine that accepts MT2 tapers. Inside, there's a spring-loaded center point. You place your tap in the pre-drilled hole, and this spring-loaded point presses into the tap's center dimple. As you turn the tap by hand (using a tap wrench), the tool's shank stays fixed in the machine, forcing the tap to stay straight and true. No more wobble! It's made from hardened and ground tool steel for durability. The overall length is 145mm. This is a huge upgrade over old-school methods or trying to hold a tap in a drill chuck. Get professional, straight threads every single time with this essential workshop aid.