| UNITAC INCORPORATED Patent applications |
| Patent application number | Title | Published |
|---|
| 20110280675 | Method for Forming Through-Hole - A method for forming a through-hole on a work material using a drill having a drill head provided with a brazed-type cutting blade helps prevent generation of a spiral mark on an inner circumferential face of the through-hole and obtains a superior appearance and high working accuracy. In forming a through-hole H on a work material W by a drill head | 11-17-2011 |
| 20110268519 | Method for Forming Through-Hole - A method for forming a through-hole on a work material using a drill having a drill head provided with a brazed-type cutting blade helps prevent generation of a spiral mark on an inner circumferential face of the through-hole and obtains a superior appearance and high working accuracy. In forming a through-hole H on a work material W by a drill head | 11-03-2011 |
| 20100135739 | Gun Drill - A gun drill in which coolant delivered to a cutting part can be discharged intensively to a cutting chip discharge groove along with the chips, damage on the inner circumference of a drilled hole or fall of machining precision due to clogging with chips can be prevented, and cutting efficiency is enhanced by reducing rotary load and long lifetime can be attained. Coolant supply paths ( | 06-03-2010 |
