A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.

A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.

A cartridge for a grooving tool holder extends along a mid-thickness plane by being bordered in the mid-thickness plane by peripheral surfaces of the cartridge. The peripheral surfaces of the cartridge include a clamping surface, a back surface for the fixation to the grooving tool holder along a screwing direction, and a front surface. The cartridge has a coolant channel extending along a direction from the back surface to the front surface. The screwing direction and the direction of extension of the coolant channel are both included in the mid-thickness plane of the cartridge. A grooving tool holder includes an upper front surface for fixation by screwing to the back surface of the cartridge.

A pipe machining apparatus includes a frame, a tool support, an advancement device, and an advancement member. The tool support is coupled to and movable relative to the frame. The tool support is adapted to support a tool and move the tool in a direction toward a pipe at an increment. The advancement device includes an advancement projection fixedly attached to the frame. The advancement projection includes a contact-surface. The advancement member is coupled to the tool support. Upon the advancement member contacting the contact-surface of the advancement projection the advancement member is adapted to advance the tool towards the pipe at the increment. The contact-surface of the advancement projection is shaped to always be in a non-perpendicular contact position with the advancement member.

Tool-holding device (11) for a machining tool, comprising: a tool-holder body (13); a receiving part (15) defined in the tool-holder body (13); a retaining element (17) provided with a pair of mutually cooperating jaws (17a,17b); a female seat (19) between the jaws for an engaging male portion (21) of a machining tip (23), the jaws (17a,17b) being capable of taking a locking configuration, in which the engaging portion (21) of the tool (23) is firmly locked within the seat (19) of the retaining element (17), and a disengaged configuration in which the engaging portion (21) of the tip (23) can be detached from the retaining element (17); a moveable component (25) which bear the main load of holding the retaining element (17) in the receiving part (15) when the retaining element (17) is in the configuration in which it engages the tool (23).

A cutting tool with a coolant system having a cutting blade, a cutting insert and a blade holder. The cutting blade has a first blade bore having a first bore peripheral surface and an entry gap recessed therein. On assembling the cutting tool, a fastening element clamps the first bore peripheral surface and seals the first blade bore, releasably securing the cutting blade to the blade holder and allowing a fluid connection between the blade holder and the cutting blade.

Deburring blade for deburring bore margins with an even or uneven shape, having a base body (1) which is rotatably driven about its longitudinal axis, in which base body at least one bar blade (3) is held exchangeably in a spring-loaded, swivelably mounted blade holder (2) in the base body (1) in a radial bar blade bore (7) of the blade holder (2), and the blade holder (2) is designed as an approximately cylindrical body, which is mounted rotatably in a bearing bore (6) of the base body (1).

A holder, a cutting tool and a machining method that allow coolant to be smoothly supplied to a machining location of a workpiece are provided. A holder for a cutting tool comprises: a plurality of mounting parts each of which is mounted with a cartridge that holds a cutting insert; and a coolant flow path that is opened in each mounting part.