In accordance with at least one aspect of this disclosure, a surgical rod cutter assembly includes a first blade member including a first open notch in a first end thereof. The first open notch spans across a first ingress axis, along which a rod is inserted for cutting. A first rotation bore is defined through the first blade member, a linkage of the first blade member extends away from the rotation bore on a first linkage axis, and the first rotation bore intersects the first linkage axis.

A cutter includes a head with an upper jaw, a lower jaw and an upper handle and lower handle coupled to the head. The upper jaw includes a single cutting blade. The lower jaw includes a pair of cutting blades with a channel between the pair of cutting blades. When the head of the cutter is in a closed position, the cutting blade of the upper jaw is positioned in the channel of the lower jaw.

A forcible entry tool includes at least a cutter and a spreader. The forcible entry tool further includes a first tool portion having a first cutter part and a first spreader part. The forcible entry tool further includes a second tool portion having a second cutter part and a second spreader part. The first tool portion and the second tool portion are rotatable relative to one another to apply force to either or both of the cutter and the spreader.

A strand cutter includes a drive assembly and a clamp assembly. The strand cutter includes a nose piece. The nose piece includes a nose piece body, a shoulder, a fixed blade receptacle and a rotating blade receptacle. The strand cutter includes a fixed blade received in the fixed blade receptacle and a rotating blade assembly. The rotating blade assembly includes a cylindrical cutting body, a replaceable shear blade or a cutting edge, and a drive gear engagement coupled to or integrated with the cutting body. The drive gear engagement engages the drive assembly so as to allow the transmission of torque from the drive assembly to the blade mount, the blade mount coupled to or integrally formed with the cutting body. The strand cutter also includes a flange plate, wherein the flange plate receives the shoulder. The flange plate retains the nose piece in engagement to the drive assembly.

A pair of single-blade-double-edged steel wire rope shears, includes: a first cutting member and a second cutting member pivotally connected to each other. The first cutting member includes a first grip and a first blade, the first blade includes a first lateral cutting edge and a first bottom cutting edge; the second cutting member includes a second grip and a second blade, the second blade includes a second lateral cutting edge and a second bottom cutting edge; when the first and second grips pivot toward each other, the first and second lateral cutting edges cut a to-be-cut object inserted therebeween, meanwhile, the first and second bottom cutting edges also cut the to-be-cut object, so as to form at least three cutting points on the to-be-cut object, and as a result, the pair of single-blade-double-edged steel wire rope shears can improve cutting efficiency.

Pliers include two plier members connected through a pivot that allows the upper handle to move a lower jaw and a lower handle to move an upper jaw about the pivot. The upper jaw and lower jaw together define a head of the pliers. The pliers include one or more striking surfaces located at the head.

A multi-purpose electrical tool is described herein for electrical wiring manipulations. The multi-purpose electrical tool combines the functions of several different tools, for example gripping, bending, cutting, stripping, and curling, and the like, into a single tool. The multi-purpose electrical tool comprises two body members attached at a pivot point and two jaws portions. The jaw portions move open and closed when the body members are opened and closed, facilitating cutting functions. The jaw portions also allow for wire curling. One of the body members includes a slot for inserting a screwdriver into the slide for its immediate use.

A strand cutter includes a drive assembly and a clamp assembly. The strand cutter includes a nose piece. The nose piece includes a nose piece body, a shoulder, a fixed blade receptacle and a rotating blade receptacle. The strand cutter includes a fixed blade received in the fixed blade receptacle and a rotating blade assembly. The rotating blade assembly includes a cylindrical cutting body, a replaceable shear blade or a cutting edge, and a drive gear engagement coupled to or integrated with the cutting body. The drive gear engagement engages the drive assembly so as to allow the transmission of torque from the drive assembly to the blade mount, the blade mount coupled to or integrally formed with the cutting body. The strand cutter also includes a flange plate, wherein the flange plate receives the shoulder. The flange plate retains the nose piece in engagement to the drive assembly.

A surgical instrument for cutting an elongated element. The surgical instrument may have a compact size for use in-situ during a surgical procedure. The surgical instrument is also configured to provide the necessary mechanical advantage to cut the elongated element. The surgical instrument may include first and second arms that are pivotally connected together at a pivot. The arms include blades positioned at or towards distal ends of the arms that act together to cut the elongated element. A force mechanism is positioned between the arms to pivot the arms between an open orientation and a closed cutting orientation. The force mechanism may be positioned directly between the arms to reduce the overall size of the instrument.

A pipe shears includes a base, a ratchet plate pivotally connected to the base, a cutter blade detachably mounted to the ratchet plate, a positioning member mounted between an elongated hole of the ratchet plate and a positioning groove of the cutter blade, and a push rod inserted in the base and stopped against a stop member. When the push rod is not pushed, it is positioned in the elongated hole of the ratchet plate and stopped against the positioning member to force the positioning member into engagement with the positioning groove of the cutter blade, and the cutter blade is not detachable at this time. When the push rod is pushed, the stop member is moved out of the elongated hole of the ratchet plate to unlock the positioning member from the positioning groove of the cutter blade for allowing removal of the cutter blade.