Title:
DRILL
Document Type and Number:
Japanese Patent JP2010269442
Kind Code:
A
Abstract:
To stabilize fixation of a full head tip part to a drill shaft.
A drill has the tip part (11) made of cemented carbide and a steel shaft. In the drill, the tip part (11) is fixed to the shaft at a lower side surface (21) by adhesion, and recesses and/or protrusions (30) are provided at the lower side surface (21). The height of them is made to be 15% of the height (28) of the tip part (11) at the maximum.
Inventors:
MOSELEY STEVEN
FOSER ROLAND
DOMANI GUENTHER
ALLAART JAN
FOSER ROLAND
DOMANI GUENTHER
ALLAART JAN
Application Number:
JP2010115640A
Publication Date:
December 02, 2010
Filing Date:
May 19, 2010
Export Citation:
Assignee:
HILTI AG
International Classes:
B23B51/00
Attorney, Agent or Firm:
Kenji Sugimura
Tatsuya Sawada
Ken Ogushi
Tatsuya Sawada
Ken Ogushi