An electrically isolated socket may include a drive body, a driven body, and a body portion. The driven body may be made of first metallic material and having a driven end configured to receive a fastener. The drive body may be made of a second metallic material and having a drive end configured to receive a protrusion of a driving tool. The body portion may over-mold substantially all portions of the drive body and the driven body other than the drive end and the driven end, respectively. The drive end of the drive body and the driven end of the driven body may face away from each other, and the drive body and driven body each include axial grooves. The axial grooves of the drive body each extend substantially perpendicular to an annular groove formed in the drive body from the annular groove formed in the drive body to the drive end, and the axial grooves of the driven body each extend substantially perpendicularly to an annular groove formed in the driven body from the annular groove formed in the driven body to the driven end.

An electrically isolated coupler includes a drive body, a driven body, and a torque transfer assembly. The drive body is made of first metallic material and has a drive end configured to interface with a fastening component. The drive body includes a first interface portion and the driven body includes a second interface portion. The driven body is made of a second metallic material and has a driven end configured to interface with a driving tool. The torque transfer assembly is disposed between the drive body and the driven body to electrically isolate the drive body and the driven body from each other and transfer torque between the drive body and the driven body. The torque transfer assembly includes non-conductive material configured to maintain separation between the drive body and the driven body of at least about 0.400″.

An electrically isolated socket may include a drive body, a driven body, and a body portion. The driven body may be made of first metallic material and having a driven end configured to receive a fastener. The drive body may be made of a second metallic material and having a drive end configured to receive a protrusion of a driving tool. The body portion may over-mold substantially all portions of the drive body and the driven body other than the drive end and the driven end, respectively. The drive end of the drive body and the driven end of the driven body may face away from each other, and the drive body and driven body each include axial grooves. The axial grooves of the drive body each extend substantially perpendicular to an annular groove formed in the drive body from the annular groove formed in the drive body to the drive end, and the axial grooves of the driven body each extend substantially perpendicularly to an annular groove formed in the driven body from the annular groove formed in the driven body to the driven end.

A hand tool includes a first driving element, a second driving element and at least one connecting element. The first driving element includes a first driving portion and a first staggered portion. The first driving portion is connected to the first staggered portion integrally. The second driving element does not contact the first driving element and includes a second driving portion and a second staggered portion. The second driving portion is connected to the second staggered portion integrally. The connecting element connects the first staggered portion and the second staggered portion, wherein the connecting element is made of insulating material.

A ratcheting box torque wrench is provided. The wrench includes a head and a handle connected to the head. The head has a slipping torque limiter that applies torque to a fastener in a first direction (T) up to a torque limit before slipping in the first direction (T) and ratchets in a second direction (R).

An electrically isolated coupler includes a drive body, a driven body, and a torque transfer assembly. The drive body is made of first metallic material and has a drive end configured to interface with a fastening component. The drive body includes a first interface portion and the driven body includes a second interface portion. The driven body is made of a second metallic material and has a driven end configured to interface with a driving tool. The torque transfer assembly is disposed between the drive body and the driven body to electrically isolate the drive body and the driven body from each other and transfer torque between the drive body and the driven body. The torque transfer assembly includes non-conductive material configured to maintain separation between the drive body and the driven body of at least about 0.400″.

An electrically isolated coupler may include a driven body, a drive body and an insulating member. The drive body is made of first metallic material and has a driven end configured to interface with a fastening component. The driven body includes a first interface portion and the drive body includes a second interface portion. The drive body is made of a second metallic material and has a drive end configured to interface with a driving tool. The insulating member is disposed between the drive body and the driven body to electrically isolate the drive body and the driven body from each. The first interface portion includes at least one axially extending portion that extends toward the drive body, and the second interface portion includes at least one axially extending portion that extends toward the driven body. The insulating member is disposed between the respective at least one axially extending portions of the first and second interface portions.

An insulation system for a tool includes a first element configured to electrically insulate an output unit of the tool from a detachably receivable tool element of the tool that is configured to process a workpiece. The insulation system further includes and a second element configured to electrically insulate the output unit toward the outside. A method includes mounting the insulation system on the tool.

An electrically isolated coupler may include a driven body, a drive body and an insulating member. The drive body is made of first metallic material and has a driven end configured to interface with a fastening component. The driven body includes a first interface portion and the drive body includes a second interface portion. The drive body is made of a second metallic material and has a drive end configured to interface with a driving tool. The insulating member is disposed between the drive body and the driven body to electrically isolate the drive body and the driven body from each. The first interface portion includes at least one axially extending portion that extends toward the drive body, and the second interface portion includes at least one axially extending portion that extends toward the driven body. The insulating member is disposed between the respective at least one axially extending portions of the first and second interface portions.

An insulating ratchet driver with pivoting head has: a handle, a spring, a pressing knob, a driving head and a pivoting member. The pivoting member is provided with a cover made of an insulating material. All metal portions of the handle, the pressing knob and the driving head are coated with an insulating layer.