Core bit

Details Core bit Core bit

2007-07-10

2007-07-10

Carter, Monica (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

C408S057000, C279S020000, C279S157000

Reexamination Certificate

active

10528234

ABSTRACT:
In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal member forming a seal between the mounting portion and a side of the chuck portion is formed at the guide portion in the cylindrical shape of the core bit.

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