A deburring tool includes a deburring head and a shaft portion connected to the deburring head. The deburring head includes a conical hollow body, a primary cutting edge and a secondary cutting edge both formed on the conical hollow body. The conical hollow body has at least one flute extending between interior and exterior conical surfaces of the conical hollow body, and at least one recessed cutout defined in the interior conical surface. The primary cutting edge is formed at a junction of a wall surface of the flute and a bottom surface of the recessed cutout. The secondary cutting edge is formed at a junction of a wall surface of the recessed cutout and the interior conical surface.

A rotary cutter for cutting damaged threads of a bolt includes a body rotatable about a rotating axis and having a connecting end and an operative end. A first cutting blade is disposed on an inner periphery of the body facing a cutting space extending along the rotating axis from the operative end towards but spaced from the connecting end. The body further includes a virtual projection plane perpendicular to the rotating axis. A first virtual plane passes through the first cutting blade and extends perpendicularly to the virtual projection plane. A virtual circle and a first virtual reference line are located on the virtual projection plane. The first virtual reference line intersects the rotating axis and passes through an intersection of the first virtual plane and the virtual circle. An angle between the first virtual reference line and the first virtual plane is between 5 and 40.

The Deburr-It Bit is a versatile tool bit designed to be used manually with smaller size circular hollow ridged tubing or with a motorized drill during the installation of all types and sizes of circular hollow ridged tubing. The function of the Deburr-It Bit is to remove burr that is formed on said tubing when the tubing is cut with various types of saws and cutting tools. In most cases, the removal of burr allows the circular hollow ridged tubing to easily slip into the manufactured fitting orifice found on all fittings which could include elbows, valves, couplings, adaptors, and most types of connectors. It should also be noted here, that removal of burr, on the inside edge of circular hollow ridged tubing, is necessary to have a smooth unrestricted surface for the best fluid flow possible. The purpose of this Deburr-It Bit is to completely remove burr from the inside edge of said tubing, the outside edge of said tubing, and release burr waste debris particles to the atmosphere at the same time during said bit rotation. What is unique is the beveled circular double-wall V-shaped abrasion cavity surfaces of the Deburr-It Bit, that when in contact with said tubing, will remove the burr from both the inside edge of circular hollow ridged tubing and outside edge of circular hollow ridged tubing at the same time and in a shorter amount of time, resulting in two smooth unrestricted tubing surfaces. There is no need for expensive machinery.

A refacing tool includes a feed assembly that holds a first set of cutters positioned for refacing the inner shoulder of a pin or box end of a tubular and a second set of cutters positioned for refacing the outer shoulder of the pin or box end. The axial spacing between the first set of cutters and the second set of cutters is fixed and determined by the geometry of the feed assembly. The refacing tool can simultaneously reface the inner shoulder and the outer shoulder, as well as chamfers.

A deburring tool has a hollow top portion having an interior conical surface and an exterior surface. The exterior surface of the deburring tool is preferably conical. The top portion has a plurality of flutes formed therein and extending between the interior and exterior surfaces. Each of the flutes has a cutting edge formed at the interior conical surface. In operation, rotation of the deburring tool about a longitudinal axis removes burrs projecting from bar stock contacting the interior conical surface. A method of deburring bar stock comprises: (a) rotating the deburring tool about a longitudinal axis, and (b) contacting the bar stock to the deburring tool interior conical surface.

The present invention relates to a device for deburring tubes, in particular tube ends. Said device comprises a proximal and a distal end and has a substantially basic body (1) with a plurality of contact surfaces (20, 20, 20). It further includes a shaft (2) and a guide chamber (4) in which a guide bushing (6) is displaceably mounted. A spring (5) is arranged in such a manner in the guide chamber (4) that a restoring force is exerted onto the guide bushing (6). A blade (11) is releasably fastenable on the guide bushing (6). A guide groove (19), by means of which the blade (11) is guided, extends along an outside surface of the conical basic body (1). The present invention further relates to the use of the device according to the invention for deburring tubes (17), in particular tube ends.

A deburring tool has a hollow top portion having an interior conical surface and an exterior surface. The exterior surface of the deburring tool is preferably conical. The top portion has a plurality of flutes formed therein and extending between the interior and exterior surfaces. Each of the flutes has a cutting edge formed at the interior conical surface. In operation, rotation of the deburring tool about a longitudinal axis removes burrs projecting from bar stock contacting the interior conical surface. A method of deburring bar stock comprises: (a) rotating the deburring tool about a longitudinal axis, and (b) contacting the bar stock to the deburring tool interior conical surface.

A deburring tool includes a deburring head and a shaft portion connected to the deburring head. The deburring head includes a conical hollow body, a primary cutting edge and a secondary cutting edge both formed on the conical hollow body. The conical hollow body has at least one flute extending between interior and exterior conical surfaces of the conical hollow body, and at least one recessed cutout defined in the interior conical surface. The primary cutting edge is formed at a junction of a wall surface of the flute and a bottom surface of the recessed cutout. The secondary cutting edge is formed at a junction of a wall surface of the recessed cutout and the interior conical surface.

A tool unit for performing a chamfering operation on a workpiece is disclosed. The tool unit includes a body, a plunger, at least one insert holder, and at least one cutter insert. The body includes a bore, and the plunger is movably positioned within the bore. The insert holder is coupled to the body and is in engagement with the plunger. The cutter insert is coupled to the at least one insert holder. The cutter insert includes a cutting edge adapted to be positioned at a cutting angle relative to the workpiece, and the cutting angle is varied relative to the workpiece upon a movement of the plunger within the bore.

A self-adjusting tool for chamfering an end of a cylinder includes a plurality of legs. A distal segment of each of the legs extends in a forward direction of the tool and is placeable about the end of the cylinder. A central body has a rotatable shaft and a mechanism that is operable by rotation of the shaft about a shaft axis. The mechanism is operable to retract the legs inward in tandem toward the cylinder and to rotate the legs about the shaft axis when further retraction of the legs is blocked by contact with the cylinder. One or a plurality of chamfering blades are each attached to one of the legs. A cutting edge of each blade is oriented diagonally forward and inward.