Abstract: 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.

Abstract: 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.

Abstract: A connection arrangement which includes a conducting slotted connection part (3) fixed in a recess in an insulating housing (5) is provided with fixing means (52, 53) enabling a connection tool (6) to be positioned and fixed relative to the housing during a connection operation. The connection tool (6) includes bearing means (72, 73) enabling it to be positioned on the housing and a rigid wire inserting blade (60) which penetrates into the housing along the slot via a tool insertion orifice (51). A rigid insertion blade (60) co-operates with two flexible blades (62) in order to fix the tool in the insertion orifice (51).

Abstract: The invention relates to a connection arrangement having a rectilinear insulation-piercing and wire-retaining slit, and to a tool endpiece for providing connection between wires (2) and such arrangements. The insulation-piercing and wire-retaining slit extends longitudinally along a profile-shaped portion (31, 32, 33) of a conductive part (3) having a U-shaped cross-section with the free ends of the U being folded towards each other and leaving a space therebetween corresponding to the width of the slit, said profile-shaped portion being intended to serve as a guide for the endpiece of the connection tool (6). The endpiece includes a core (60) whose shape is complementary to the shape of the cavity in the profile-shaped portion and which slides therealong. The endpiece slides parallel on either side of each of the folds (31) delimiting the slit in the profile-shaped portion, and it enters the housing via a hole (51) whose shape is complementary thereto, which hole, serves to guide the tool.