MULTI-FUNCTIONAL CUTTING TOOL CAPABLE OF INCREASING THE SERVICE LIFE OF A CUTTING TOOL BY GIVING UNIFORM STRENGTH AND COOLING EFFECT TO THE CUTTING TOOL

摘要

PURPOSE: A multi-functional cutting tool is provided to increase the service life of a cutting tool by giving uniform strength and cooling effect to the cutting tool, since the arrangement of a cut edge and a cooling hole is not changed, if the cutting tool is re-installed.;CONSTITUTION: A multi-functional cutting tool comprises a shank part(100), first and second cutting parts(200,300), and a cooling hole(280). The cooling hole is penetrated from the first cutting part to the end part of the second cutting part along a rotational axis(R) of a cutting tool. A chip discharging groove(240) of the first cutting part has a first plane(242) and a second plane(244). The second plane is formed at a tilt in fixed angel toward the first plane.;COPYRIGHT KIPO 2011