Hilti Aktiengesellschaft

Pingyan Rong

Guenter Domani

Florian Schroeder

A cutting section () which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first open tubular element () which is in the form of a first hollow cylinder having a first waved, trapezoidal or zigzag-shaped cross-sectional area, a second closed tubular element () which is in the form of a second hollow cylinder having a circular ring-shaped cross-sectional area, and one or more drill segments () which are connected to the first open tubular element () and to the second closed tubular element ().

Cutting section for a drill bit

A method for producing a cutting section from a closed tubular element () which is in the form of a hollow cylinder and from one or more drill segments () which are connected to the closed tubular element ().

Growing community of inventors

Feldkirch, Austria

Pingyan Rong