摘要 |
PROBLEM TO BE SOLVED: To provide a side-through-type tap which, independently of a tap-mounting type in a holding part of a machine, can satisfactorily and reliably introduce a coolant, fed into the tap, into a side-through groove and can also be applied to mist processing. SOLUTION: The tap comprises a plurality of tap grooves 15 provided on the outer periphery of a screw part 11 and side-through grooves 16 provided on the outer periphery of a junk part 12 in series from a front end part to a rear end part of the junk part 12, so as to communicate with at least one of the tap grooves 15. An introduction groove 18 for introducing a coolant fed into the tap from a holding part side of the machine into the side-through groove is provided on the rear end face of the junk part 12. COPYRIGHT: (C)2009,JPO&INPIT |