Patent ID: 7866839

Claim:
A hand tool with illuminating device, comprising: a hollow handle having a stepped shoulder extending inward from an inner periphery thereof so as to define a first space and a second space in the handle, a first connection section extending from a front end of the handle and a second connection extending from a second end of the handle; an illuminating unit received in the first space and having a circuit board, a bulb connected to a first side of the circuit board and two first contact points on a second side of the circuit board; a transparent seat connected to the first end of the handle and including a ratchet mechanism received therein; a tubular member fixed to the transparent seat and engaged with the ratchet mechanism; a locking member connected to the first connection section so as to position the transparent seat and the illuminating unit; a battery unit received in the second space in the handle and having a spring connected to a first end thereof, two second contact points extending from the first end of the battery unit, and a switch unit connected to the second connection section of the handle and including a switch member and an end cap which includes a through hole through which the switch member extends, the switch member being in contact with a second end of the battery unit, a control device located between the switch member and the end cap.