Design: Tap bit, 1/4" hexagon mount for metric ISO thread according to DIN 13.
Application: Cutting tap bits are designed for thread drilling with cordless screw drills and handheld drills with left and right motion. However, they are also suitable for drilling by hand and on stationary drilling machines. Your cordless screw drill should have a minimum power of 7.5 Volt. Make sure that the tool axis and hole axis are precisely aligned and use appropriate cutting oil.
rpm: lowest settings (0?450 min-1),
torque: maximum setting.