Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Self-centering drill bit with pilot tip

Self-centering drill bit with pilot tip

US Patent 4968193 · Granted Nov 6, 1990

Estimated economic value: $2,007,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Toilet flush control device2011
Oil drain plug wrench2007
Lofted panel for a handle of a hand tool2007
High torque open end wrench2007
Cap opener2007
Oil drain plug socket for a wrench assembly2007
High torque open end wrench2006
Method and apparatus for forming parts from a continuous stock material and asso2006
Pawl-less ratchet wrench2006
High torque open end wrench2006
Wrench2006
Leg position indicator for braking2004