Tti (macao Commercial Offshore) Limited

Tti (macao Commerical Offshore) Limited

Zhao Jun Shi

Denis Gaston Fauteux

Yong Min Li

Yi Jia Chang

Li Hua Xie

Jun Jun Hao

Can Quan Huang

Hei Man Lee

Shao Lin Xia

A power tool which contains a casing, a brushless motor () mounted inside the casing, a user actuated switch () mounted on the casing, and a circuit board () mounted inside the casing. The brushless motor () is adapted to drive one or more movable parts in the power tool. The circuit board () is mechanically connected to the brushless motor () and the switch () at the same time. As only a single, integrated circuit board () is configured in the power tool, the manufacturing cost is reduced and greater reliance and electrical safety can be achieved.

Power tools with integrated circuit boards

A tool bit holder for connecting a rotary tool to a rotary tool driver. The tool bit holder including a body having a driver end configured to connect to a rotary tool driver and a tool end, a tool retainer bore, and a tool retainer movably received within the tool retainer bore and movable between an engaged position and a retracted position. The tool bit holder further includes an actuator sleeve, a sleeve spring for urging the actuator sleeve towards a first position, a plunger, and a plunger spring urging the plunger towards a loading position. A tool bit received in a tool receiving cavity pushes the plunger to a loaded position, and in the loading position the plunger extends over the tool retainer bore to engage the tool retainer and urge the tool retainer towards the retracted position.

Tool bit holder

Growing community of inventors

Dongguan, China

Zhao Jun Shi