Abstract: A high pin density connector includes an insulative housing defining a plurality of passageways for receiving a corresponding number of contacts therein for interferentially engaging with holes defined in a PCB. A positioning block attached to the housing forms a bearing face for receiving a force from an external tool for facilitating insertion of the contacts into the corresponding holes of the PCB. Guiding means comprises two grooves defined in the bearing face of the positioning block and ribs formed on a bottom face of the tool. The tool engages with the positioning block by inserting the ribs into the corresponding grooves. When a user exerts a force on the tool, the force is evenly distributed along the positioning block whereby all of the contacts are properly received in the corresponding holes of the PCB.

Abstract: This disclosure concerns a tool fixing mechanism including a hollow grip and a resilient clip body. The grip has a front end and a rear end. The front end is formed with a slot, while the rear end is formed with a cross-shaped socket. Two windows are respectively formed on the top and bottom walls of the rear end of the grip. The resilient clip body is located in the cross-shaped socket of the grip. The resilient clip body is formed with two lugs extending out of the windows of the grip. Therefore, if a user depresses the lugs, the resilient clip body is closed or stretched open so as to fixedly latch or release a tool inserted in the slot of the front end of the grip.