A ratchet screwdriver includes a mounting seat, a control member, a driving shaft, two pawls and two springs. The mounting seat has a receiving space, a first slot and a second slot. A passage is defined through the mounting seat. The first and second slots have a hole respectively. The driving shaft has a ratchet portion located in the receiving space. Each pawl is biased by one spring so as to be engaged with the ratchet portion. The control member is rotatably mounted to the mounting seat and the driving shaft. The control member has two control plates to pivot the pawls to disengage from the ratchet portion of the driving shaft.

A ratchet screwdriver includes a mounting seat, a control member, a driving shaft, two pawls and two springs. The mounting seat has a receiving space, a first slot and a second slot. A passage is defined through the mounting seat. The first and second slots have a hole respectively. The driving shaft has a ratchet portion located in the receiving space. Each pawl is biased by one spring so as to be engaged with the ratchet portion. The control member is rotatably mounted to the mounting seat and the driving shaft. The control member has two control plates to pivot the pawls to disengage from the ratchet portion of the driving shaft.

A screwdriver and a ratchet mechanism thereof are disclosed. A ratchet mechanism includes: a main body base having blocking portions; a ratchet elastic sheet having abutment portions corresponding to the blocking portions; two blocking sheets retained on the blocking portions and abutted the abutment portions to be positioned between the blocking and abutment portions; a pinion having a gear portion between the blocking sheets to allow the gear portion and the blocking sheets to be adjusted between engagement/disengagement states; a positioning elastic sheet having an operating portion; a ratchet direction adjuster having contact members corresponding to the blocking sheets and an operated portion corresponding to the operating portion. The operating portion operates the operated portion, the contact members contact the blocking sheets and the blocking sheets being operated by the contact members to be in disengagement state with the gear portion to adjust the rotational direction of the gear portion.

A screwdriver and a ratchet mechanism thereof are disclosed. A ratchet mechanism includes: a main body base having blocking portions; a ratchet elastic sheet having abutment portions corresponding to the blocking portions; two blocking sheets retained on the blocking portions and abutted the abutment portions to be positioned between the blocking and abutment portions; a pinion having a gear portion between the blocking sheets to allow the gear portion and the blocking sheets to be adjusted between engagement/disengagement states; a positioning elastic sheet having an operating portion; a ratchet direction adjuster having contact members corresponding to the blocking sheets and an operated portion corresponding to the operating portion. The operating portion operates the operated portion, the contact members contact the blocking sheets and the blocking sheets being operated by the contact members to be in disengagement state with the gear portion to adjust the rotational direction of the gear portion.

A torque wrench having a handle and an output shaft is disclosed. The output shaft may be constrained to turn only unidirectionally due to a ratchet. Rotation of the output shaft may be permanently disabled by an internal mechanism. Torque imposed on the output shaft may be limited by a torque responsive cam clutch. The handle forms or is part of an enclosure enclosing internal components such as the ratchet, the internal disablement mechanism, and the torque responsive cam clutch. A seal between the body and the output shaft prevents ingress and egress of lubricants and contamination between the inside of the body and the output shaft.

A torque wrench having a handle and an output shaft is disclosed. The output shaft may be constrained to turn only unidirectionally due to a ratchet. Rotation of the output shaft may be permanently disabled by an internal mechanism. Torque imposed on the output shaft may be limited by a torque responsive cam clutch. The handle forms or is part of an enclosure enclosing internal components such as the ratchet, the internal disablement mechanism, and the torque responsive cam clutch. A seal between the body and the output shaft prevents ingress and egress of lubricants and contamination between the inside of the body and the output shaft.

The present disclosure generally relates to a handle for a hand tool. The handle comprises at least four prongs extending outwardly from a central point. An arcuate surface is disposed between each of the at least four prongs. A connection member extends outwardly from the central point perpendicularly in relation to the at least four prongs. The connection member may removably engage with the hand tool.

A hand tool assembly includes a grip having a slot communicating with the first end and a lateral side of the grip. A rod is pivotably connected to the grip and includes a function end. The rod is engaged with the slot to be co-axially connected with the grip, or the rod is positioned perpendicularly relative to the grip. An end part is connected to the second end of the grip and includes an engaging portion which protrudes beyond the second end of the grip. A magnet is connected to one end of the rod so as to attract the end part in the grip.

The present disclosure is a screwdriver. A rotating seat includes a turntable and a plurality of locking blocks. A driving rod set includes a driving rod and a ratchet gear, and the ratchet gear is located in the turntable. A retaining set includes a tooth block and an elastic piece. The tooth block includes a plurality of teeth, and the elastic piece abuts a driving plate and the tooth block. A driving seat set includes a driving seat and a positioning set, and the positioning set includes a spring and a positioning piece. A locking block is inserted between the tooth block and the ratchet gear, so that the locking tooth is locked or separated from the ratchet gear.

The present disclosure is a screwdriver. A rotating seat includes a turntable and a plurality of locking blocks. A driving rod set includes a driving rod and a ratchet gear, and the ratchet gear is located in the turntable. A retaining set includes a tooth block and an elastic piece. The tooth block includes a plurality of teeth, and the elastic piece abuts a driving plate and the tooth block. A driving seat set includes a driving seat and a positioning set, and the positioning set includes a spring and a positioning piece. A locking block is inserted between the tooth block and the ratchet gear, so that the locking tooth is locked or separated from the ratchet gear.