A cutting tool includes a holder and a cutting insert releasably clamped in the holder. The holder has a rear pocket surface which includes a pocket abutment surface and an adjacent pocket wedge surface. The cutting insert has at least one abutment surface and an adjacent wedge surface. When the cutting tool is assembled but not in use, the pocket abutment surface of the holder abuts the abutment surface of the cutting insert, and the wedge surface of the holder is facing and spaced apart from the wedge surface of the cutting insert. During cutting operations, the wedge surface of the insert may abut against the wedge surface of the holder.

A cutting tool used for turning operations is releasably secured to a tool holder. The cutting insert includes top and bottom insert surfaces, each surface including two pairs of insert wedge surfaces. The tool holder includes an insert pocket having a pocket top surface and a pocket bottom surface. When the cutting tool is assembled, only one of the two pairs of insert wedge surfaces of the insert top surface engages the pocket top surface, and only one of the two pairs of insert wedge surfaces of the insert bottom surface engage the pocket bottom surface.

A cutting insert and a cutting tool which can suppress lowering of blade-edge positional accuracy while holding by a holder having a small thickness is enabled are provided. The cutting insert includes a first end surface, a second end surface, and a peripheral side surface connected to the first end surface and the second end surface and having a rake face, a flank, and a cutting edge formed in a connection region between the rake face and the flank, and a through hole penetrating the first end surface and the second end surface is formed. It is the cutting insert including a first contact surface substantially perpendicular to a center axis direction of the through hole and capable of contacting the holder, a second contact surface substantially in parallel with the center axis direction of the through hole, substantially perpendicular to a plane including the first contact surface and capable of contacting the holder, and a third contact surface inclined with respect to the center axis direction of the through hole and capable of contacting the holder, and a cutting tool including the cutting insert as above.

A method of clamping a first cutting insert or an adaptor to a holder. Either the holder includes two insert pockets configured for machining in two different orthogonal directions or the holder includes a single adaptor pocket configured for holding the adaptor in two different orthogonal directions. The method includes the steps of choosing one of two orthogonal directions for machining and securing either the first cutting insert to an appropriate one of the two pockets or securing the adaptor to the adaptor pocket for machining in the chosen orthogonal direction.

A machining tool may include an elongated body forming a duct therewithin, the duct extending from a proximal inlet at a proximal end of the body to a distal portion of the body having a first lateral opening. The tool may also include a plunger movable between a proximal first position and a distal second position along the duct. The tool may also include a resilient element to press the plunger towards the proximal inlet, and a pivotally deployable blade rotatable between a deployed state, when the plunger is in the first position, and a retracted state, when the plunger is in the second position, wherein the blade is deployable from the first lateral opening.

A machining tool may include an elongated body forming a duct therewithin, the duct extending from a proximal inlet at a proximal end of the body to a distal portion of the body having a first lateral opening. The tool may also include a plunger movable between a proximal first position and a distal second position along the duct. The tool may also include a resilient element to press the plunger towards the proximal inlet, and a pivotally deployable blade rotatable between a deployed state, when the plunger is in the first position, and a retracted state, when the plunger is in the second position, wherein the blade is deployable from the first lateral opening.

A damper system for a cutting tool is provided having at least one damper body that is added to a cutter body of the cutting tool to help dampen a vibration when the cutting tool is placed in use. The damper body is supported by a damper ring. The damper ring is held in place between a central support boss or hub and an adjustable top cap. The adjustable top cap can be tightened or loosened by use of a fastener element to change the amount of pressure on the damper ring. By adjusting the tension placed on the damper ring, the damper system can be tuned to better suppress vibrations when the cutting tool is placed in use.

A parting-off tool assembly including a blade holder, a parting-blade and a clamp. The clamp is secured to the blade-holder via a clamp attachment portion being fastened to the blade holder's holder attachment portion. The clamp also includes a clamp portion which abuts a peripheral edge of the parting-blade to secure the parting-blade to a blade-pocket of the blade holder.

Cutting tool holders are disclosed that include vibration dampening elements. The vibration dampening elements may extend parallel to a longitudinal plane of the cutting tool holder. The vibration dampening elements allow the cutting tool holders to have a smaller width while still providing higher grooving depth.

Cutting tool holders are disclosed that include vibration dampening elements. The vibration dampening elements may extend parallel to a longitudinal plane of the cutting tool holder. The vibration dampening elements allow the cutting tool holders to have a smaller width while still providing higher grooving depth.