The TC388 and TC389 Supreme taps have special cutting geometries that fully shear off the root of the chip when reversing, minimising torque peaks that are common with blind-hole machining. In addition, the latest geometries prolong tool life and increase process reliability, while the need for oil lubrication has been replaced by the use of emulsion.
Generating maximum process reliability and long tool life, the TC685 Supreme orbital drill thread mill generates the core hole and thread (and chamfer, if required) in a single operation. The tool’s face-milling geometry produces stabilising forces in the axial direction to improve stability and reduce deflection, with the result of fewer radius corrections and reduced wear. In addition, the TC685 Supreme’s 15° helix angle and internal coolant guarantee chip evacuation.
