Rotating Tool for Processing Holes Provided with Cartridges Having Cutting Inserts

A rotating tool for processing a hole, comprising:

• a tool body configured to rotate about a rotating axis and having at least one chip discharge groove at its peripheral portion;
• an outer cartridge having at least one cutting insert and a bolt through-hole;
• an inner cartridge having at least one cutting insert and a bolt through-hole;
• and
• at least one setting plate formed in a thin flat shape;
• wherein said tool body includes a pocket for the inner cartridge formed adjacent to the rotating axis and at a distal end of the tool body, and wherein a pocket for the outer cartridge is formed adjacent to the peripheral portion of the tool body and at the distal end of the tool body;
• said inner cartridge is mounted on the pocket for the inner cartridge by means of a bolt;
• said outer cartridge is mounted on the pocket for the outer cartridge by means of a bolt;
• said bolt through-hole of the outer cartridge extends toward the peripheral portion of the tool body;
• said at least one setting plate is positioned to contact both the outer cartridge and the pocket for the outer cartridge;
• and
• screw holes for mounting the at least one setting plate are formed on a side face of the outer cartridge adjacent to the rotating axis and through-holes are formed on the at least one setting plate so that the at least one setting plate can be mounted on the side face of the outer cartridge by setting screws.