- Sandviken, SE Ralf GRIEF - Zeltweg, AT Joseph FADER - Kennesaw GA, US
International Classification:
E21B 10/43 E21B 10/60 E21B 10/62 E21C 35/18
Abstract:
A modular rotary claw drill bit having a head is mountable at a body, the head mounting a plurality of front and gauge cutting picks. A cutting tip of each front pick is located at a different radial position at the head to optimise the flushing of cut material and to minimise pick wear during use.
- Sandviken, SE Joseph FADER - Marietta GA, US Alfred LAMMER - Zeltweg, AT Kenneth MONYAK - Abingdon VA, US Steven WEAVER - Amsterdam, NL
International Classification:
E21C 35/183 B23K 1/19 B23K 1/20 B23K 1/00
Abstract:
A cutting pick tool including a cemented carbide support body that mounts a diamond composite cutting tip. The support body includes a recess having a conical region that mounts a complementary conical shaped mount portion of the tip. The components are brazed together to provide a secure and robust cutting tip region.