In comparison to manual work, electric tappers have a hand up not only in terms of speed and physical input but also in regards to precision. this is naturally true for Fein's tappers These devices work smoothly without interruption and therefore without the risk of high torque forces and the attendant hazzard of tool breakage. Using the very safe and precise operating FEIN tapper, more than 90% of time can be saved as compared to tapping by hand. There is an array of Fein tappers for different applications and thread types. All machines are available with four different clamping chucks.