CUTTING EDGE PART REPLACEMENT TYPE CUTTING TOOL AND CUTTING EDGE PART MOUNTED IN THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent length in the direction of axial line in a condition in which a cutting edge part and a bolt part are mutually connected from becoming large, although a male screw part is easily formed at low cost as a constitution for connecting the cutting edge part with the bolt part. SOLUTION: A shaft part and an end part 65 continuous with a rear end side of the shaft part are formed in a rear end side part of the cutting edge part 60. The male screw part 71 is formed on an outer peripheral face in the bolt part 70, and the outer peripheral face is cut out along the direction of axial line O to form a fitting part opened on the outer peripheral face of the bolt part 70 and opened on a tip face 73 and a rear end face 74. The shaft part in the rear end side part of the cutting edge part 60 is nipped in by the fitting part of the bolt part 70 to fit them mutually and connect the cutting edge part 60 with the bolt part 70. COPYRIGHT: (C)2003,JPO