Title:
DRILLING TOOL AND DRILLING METHOD
Document Type and Number:
Japanese Patent JP2019035267
Kind Code:
A
Abstract:
To provide a drilling tool and drilling method capable of drilling the subsoil cheaper than the case of using to a drilling bit to whose tip end a plurality of cemented carbide chips are connected.SOLUTION: A drilling tool 1 can be mounted on a drilling machine 20, and when the tool is mounted on the drilling machine 20, the drilling tool is provided with a hollow rod member (i.e. lock bolt 10) which is given a percussion and rotational forces by the drilling machine 20 in the case of mounted on the drilling machine 20 and with a cutting member 30 which is mounted on the tip end of the rod member. The cutting member 30 is constructed of a planer member formed a corner edge portion 30p of the most distal end from the rod member.SELECTED DRAWING: Figure 1
Inventors:
TAKEZAKI HIROSHI
Application Number:
JP2017157462A
Publication Date:
March 07, 2019
Filing Date:
August 17, 2017
Export Citation:
Assignee:
TRYTECH CO LTD
International Classes:
E21B6/00; E21B10/58
Attorney, Agent or Firm:
Hiroki Kashima
Masaharu Takamura
Masaharu Takamura