A cutting tool and a method of operating a cutting jaw is provided. The cutting tool includes a first jaw member having a first cutting edge and a first relief area adjacent the first cutting edge, the first jaw member further having a first projection extending from the first cutting edge into the first relief area. A second jaw member has a second cutting edge and a second relief area adjacent the second cutting edge, the second jaw member further having a second projection extending from the second cutting edge into the second relief area. Wherein the first projection and the second projection are sized to engage a leg of an ear clamp and prevent fully closing the ear clamp when the cutting tool is used in a crimping operation.

A cutting tool and a method of operating a cutting jaw is provided. The cutting tool includes a first jaw member having a first cutting edge and a first relief area adjacent the first cutting edge, the first jaw member further having a first projection extending from the first cutting edge into the first relief area. A second jaw member has a second cutting edge and a second relief area adjacent the second cutting edge, the second jaw member further having a second projection extending from the second cutting edge into the second relief area. Wherein the first projection and the second projection are sized to engage a leg of an ear clamp and prevent fully closing the ear clamp when the cutting tool is used in a crimping operation.

Crimping pliers include a clamping assembly including a left jaw and a right jaw, a control mechanism, and a rotating button mechanism. The left jaw includes a left connecting portion and a left head. The right jaw includes a right connecting portion and a right head. The control mechanism drives the clamping assembly to switch between a clamping state and an open state. The rotating button mechanism includes a first connecting plate connected to the right connecting portion, an eccentric shaft, a rotating button connected to the eccentric shaft, and a limiting structure connected to the rotating button to limit a rotating range of the rotating button. The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.

Crimping pliers include a clamping assembly including a left jaw and a right jaw, a control mechanism, and a rotating button mechanism. The left jaw includes a left connecting portion and a left head. The right jaw includes a right connecting portion and a right head. The control mechanism drives the clamping assembly to switch between a clamping state and an open state. The rotating button mechanism includes a first connecting plate connected to the right connecting portion, an eccentric shaft, a rotating button connected to the eccentric shaft, and a limiting structure connected to the rotating button to limit a rotating range of the rotating button. The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.

A clamping plier facilitating cutting includes two heads and two handles. One of the two heads has a blade in at least one position, and the other one of the two heads has a blunt cut at a corresponding position. The two handles are respectively and integrally connected with the two heads in one-to-one correspondence, and the two heads or the two handles are rotatably connected together, so that the two heads are opened or closed by operating the two handles. When the two heads are closed, a blade of one of the two heads is attached to a plane of the blunt cut of the other one of the two heads to cut the cable. The blade of one of the two heads is easier to fit closely with the plane of the blunt cut of the other one of the two heads.

A clamping plier facilitating cutting includes two heads and two handles. One of the two heads has a blade in at least one position, and the other one of the two heads has a blunt cut at a corresponding position. The two handles are respectively and integrally connected with the two heads in one-to-one correspondence, and the two heads or the two handles are rotatably connected together, so that the two heads are opened or closed by operating the two handles. When the two heads are closed, a blade of one of the two heads is attached to a plane of the blunt cut of the other one of the two heads to cut the cable. The blade of one of the two heads is easier to fit closely with the plane of the blunt cut of the other one of the two heads.

The present invention provides an open-close device, including a first member, a second member, a third member and a fourth member; the second member is rotatably connected to the first member, the third member is rotatably connected to the first member, the fourth member is rotatably connected to the second member and rotatably connected to the third member; the open-close device further includes an angle adjusting device which is provided at a joint between the third member and the first member, for adjusting the bending angle of the third member with respect to the first member.

The present invention provides an open-close device, including a first member, a second member, a third member and a fourth member; the second member is rotatably connected to the first member, the third member is rotatably connected to the first member, the fourth member is rotatably connected to the second member and rotatably connected to the third member; the open-close device further includes an angle adjusting device which is provided at a joint between the third member and the first member, for adjusting the bending angle of the third member with respect to the first member.

A hand tool (100) includes a head section (102) including a top jaw (106) and a bottom jaw (108), a handle section (104) including a top handle (112) and a bottom handle (114), and a joint assembly coupling the head section (102) to the handle section (104). The top jaw (106) is coupled to the bottom handle (114) by a first transition portion, and the bottom jaw (108) is operably coupled to the top handle (112) by a second transition portion. The first and second transition portions are pivotally coupled to each other by a pivot pin (140). The first transition portion is disposed on a first side of a longitudinal centerline of the hand tool (100), and at least a majority of the second transition portion is disposed on a second side of the longitudinal centerline such that a width of the first transition portion is less than a width of the second transition portion.

A hand tool (100) includes a head section (102) including a top jaw (106) and a bottom jaw (108), a handle section (104) including a top handle (112) and a bottom handle (114), and a joint assembly coupling the head section (102) to the handle section (104). The top jaw (106) is coupled to the bottom handle (114) by a first transition portion, and the bottom jaw (108) is operably coupled to the top handle (112) by a second transition portion. The first and second transition portions are pivotally coupled to each other by a pivot pin (140). The first transition portion is disposed on a first side of a longitudinal centerline of the hand tool (100), and at least a majority of the second transition portion is disposed on a second side of the longitudinal centerline such that a width of the first transition portion is less than a width of the second transition portion.