| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting tool in which cutting oil is surely supplied to a machining point and by which the shortening of the service lifetime of a hole drilling tool is avoided by preventing the early abrasion of the hole drilling tool, and excellent machining is executed. SOLUTION: A supply hole 30 made to communicate with a coolant hole is provided to the tip face 11c of a tool body 11 in the cutting tool 10. The supply hole 30 is made to communicate with a supply hole 22 for the cutting edge via a communication path 23 provided to the tool body 11 on the tip face 11C of the tool body 11. The supply hole 30 is provided toward the tip of the cutting edge part 16 of a reamer 14. When the cutting oil is supplied to the coolant hole, the cutting oil is supplied toward the tip side of the cutting edge part 16 from the supply hole 30 by being guided to the supply hole 30 through the supply hole 22 for the cutting edge and the communication path 23. COPYRIGHT: (C)2005,JPO&NCIPI
|
