A pipe scraper (1) comprising: a housing (2) comprising a bore (21) having a centre axis and an open end (24) that allows access to the bore (21), the bore (21) being shaped to receive into its open end (24) at least a portion of each of two pipes (19, 20) of an assembly of two concentric pipes (19, 20), wherein the assembly of two concentric pipes (19, 20) comprises a pipe (19) having a smaller diameter, and a pipe (20) having a larger diameter, and the end of the pipe (20) having the larger diameter is separated from the end of the pipe (19) having the smaller diameter by a distance along the central axis of the assembly; a first scraper tool assembly 9, 10, 11, 16) secured to the housing (2), configured to urge a first scraper tool (9) radially inwards, and positioned at a first radial distance from the centre axis of the bore (21), and at a first axial distance from the open end (24) of the bore (21); a second scraper tool assembly (13, 14, 15, 17) secured to the housing (2), configured to urge a second scraper tool (13) radially inwards, and positioned at a second radial distance from the centre axis of the bore (21), and at a second axial distance from the open end (24) of the bore (21), wherein the first radial distance is smaller than the second radial distance, and the first axial distance is larger than the second axial distance; and a transmission means (4) to allow torque to be delivered to the housing (2) to cause rotation of the housing (2) about the centre axis of the bore (21); wherein the first scraper tool (9) is configured so that rotation of the housing (2) will cause the first scraper tool (9) to scrape portions of a pipe (20) that are in contact with the first scraper tool (9), and wherein the second scraper tool (13) is configured so that rotation of the housing (2) will cause the second scraper tool (13) to scrape portions of a pipe (19) that are in contact with the second scraper tool (13).

Systems and methods for conduit deburring include rotational bits and/or supporting structure for reducing burrs on conduit or other pipe or tubing, which often result from cutting. Certain devices simultaneously act on an entire circumference of a tubular end opening. Other devices act on only a portion of a circumference of a tubular end opening, but are guided, registered, or oriented for travel along the circumference to cut a chamfer of a predetermined angle along an interior edge thereof.

A device for holding a milling and/or grinding machine, particularly hand-held milling and/or grinding machine, in a position for machining an edge at one end of a pipe. The holder device includes at least one rotatable roller which can be laid against the pipe inner side or the pipe outer side and by which a connecting part of the holder device, on which the milling and/or grinding machine can be arranged, may be moved along the edge.

A tube scraping tool comprises: a handle; and a blade, carried by the handle. The tool has first and second laterally spaced apart portions for engaging the tube outer diameter (OD) surface during a drawing of the tool along the tube. The blade has a cutting edge trailing the first and second portions during the drawing and laterally between the first and second portions.

A precision ammunition cartridge reaming device employs a body die having an interior cavity into which an ammunition cartridge is insertable through a first end. A reaming tool rotationally powered is insertable into the interior cavity through a second end. Rotation of the reaming tool trims the interior of a neck area of the ammunition to form a concentric surface with the exterior thereof. The distal edge of the cartridge may also be trimmed by the reaming tool to form each sequentially inserted cartridge to an equal length.

A reaming apparatus for reaming pipe may include a body having a planar front surface, an annular groove defined in the planar front surface of the body and concentric with a center of the body, and a straight groove defined in the planar front surface of the body, radially aligned with the center of the body, and intersecting the annular groove. The straight groove may pass through the center of the body. The reaming apparatus may include a reaming blade having a planar front surface and at least one notch defined in the planar front surface of the reaming blade, the at least one notch being positioned on the reaming blade to substantially align with the annular groove when the reaming blade is disposed within the straight groove. The reaming apparatus can be removably mounted to a pulley of a bandsaw to ream pipe under the power of the bandsaw.

A redressing device (100) for redressing a tapered portion (12) of an orthopaedic implant (10) comprising: a grinding member (110) adapted to engage the tapered portion (12); an adjustable guide element (130) for defining, at least in part, the degree of redressing required for said tapered portion (12) by a user; and a drive shaft (120) for driving movement of said grinding member (110). A device for retaining debris produced during redressing a tapered portion (12) of an orthopaedic implant (12), a surgical kit for redressing a tapered portion (12) of an orthopaedic implant (10) and a method of redressing a tapered portion (12) of an orthopaedic implant (10) are also provided.

One aspect of the invention provides an injection-molded reamer including: an injection-molding parting line; and one or more shafts having a maximum cross-sectional dimension and a length-to-maximum-cross-sectional-dimension aspect ratio of 1:1 or greater. Each of the one or more shafts includes either: (A) one or more axial cross profiles including: a first bar having the maximum cross-sectional dimension; and a second bar having a cross-sectional dimension less than the maximum cross-section dimension, wherein the second bar is parallel to the injection-molding parting line; or (B) one or more axial elliptical profiles including: a major axis having the maximum cross-sectional dimension; and a minor axis having a cross-sectional dimension less than the maximum cross-section dimension, wherein the minor axis is parallel to the injection-molding parting line.

A peeler device removes a thin layer from the outer surface of the end of a plastic pipe or tapping tee. In the preferred embodiments, the device has a main body and a mandrel. The pipe to be peeled is pushed onto the mandrel when the mandrel is in an out position. As the main body is rotated, a blade advances onto the plastic pipe and peels a thin layer off the outer surface of the pipe as it is advanced. The main body is rotated until peeling is complete. There may be a sight window in the main body to permit visual confirmation of when peeling is complete. A spring loaded blade lever is actuated to raise the blade and the pipe is pulled out of the main body.

A precision ammunition cartridge reaming device employs a body die having an interior cavity into which an ammunition cartridge is insertable through a first end. A reaming tool rotationally powered is insertable into the interior cavity through a second end. Rotation of the reaming tool trims the interior of a neck area of the ammunition to form a concentric surface with the exterior thereof. The distal edge of the cartridge may also be trimmed by the reaming tool to form each sequentially inserted cartridge to an equal length.