Title:
【発明の名称】潤滑及び抜き出し孔を有するねじタップ
Document Type and Number:
Japanese Patent JPH02503072
Kind Code:
A
Abstract:
A tap for forming threads on the inside of a bore which includes a hexagonal central pilot bore and transverse dihedral shafts constituting means for extracting a tap broken within a bore and also constituting means for depositing lubrication or coolant or introducing pressurized air to the cutting dies of the tap. Slots are formed in the distal end of the tap to allow a flat bladed instrument to be inserted for removal of a broken tap part.
Inventors:
Mena Karl M
Application Number:
JP50298888A
Publication Date:
September 27, 1990
Filing Date:
March 16, 1988
Export Citation:
Assignee:
Mena Karl M
International Classes:
B23B51/06; B23G5/00; B23G5/06; (IPC1-7): B23B51/06; B23G5/06
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)