10-piece set: Includes 10 kinds of A-type center drill sizes (A1, A1.5, A2, A2.5, A3, A4, A5.0, A6.0, A8, A10), capable of fulfilling diverse requirements ranging from fine processing to rough processing.
Type A 60° Design: The standard A-type 60° design ensures that the processed center hole perfectly matches the 60° conical angle of the standard center.
Precise positioning ensures accuracy: It is used for processing high-precision center holes, ensuring the rotational concentricity of the workpiece and laying the foundation for subsequent turning and grinding precision processing.
Sturdy and shock-resistant: The composition of high-speed steel combines excellent hardness and toughness, providing good wear tolerance and stronger tolerance to fracture.
Smooth waste discharge and excellent surface treatment: The optimized geometric slot design helps achieve continuous waste discharge, reduces clogging, and provides a smooth bore surface.