Page 192 - Demo

190 ISCAR SPOT DRILLING AND CHAMFERING %u00bd%u0009MULTI-MASTER Solution for Spot DrillingMULTI-MASTER is a modular system containing a family of tools with shanks and unique interchangeable cutting heads for a variety of machining applications, among others, for drilling operations.The MULTI-MASTER design approach is based on a special thread profile system (T-thread) accurately located at a short, precise taper and face contact. The MULTI-MASTER drilling head has a cutting part and a back connection with an external thread and taper that screws into a shank with the corresponding internal thread and taper. The drilling head is finally secured when the back face of the head%u2019s cutting part makes contact with the shank face.This principle of coupling ensures straight and rigid clamping of a wide range of interchangeable heads.MULTI-MASTER tools meet the requirement of high accuracy because the geometry is finished by precise grinding, and the connection guarantees high concentricity within a very close limit. In addition, the tools are simple to operate since the heads are quickly replaced by easy rotation of an applied key. Moreover, they conform to strict repeatability requirements and replacing the heads does not require additional adjustment.The basic concept of the MULTI-MASTERfamily is that a shank can carry heads of different shapes and accuracy, allowing dramatic increase of tool versatility and fewer needs for special tools. Resharpening of cutting edges is no longer needed because a worn-out cutting head is simply replaced. The family renders a possibility of numerous tools by an unlimited combination of the heads and the shanks, which answers any machining requirements and reduces procurement costs.