A guide 2 for a burr cutter 34, the guide 2 comprising: a body portion 4 having first and second guide surfaces 12a, 12b which are spaced from one another to define a slot 14 between the first and second guide surfaces 12a, 12b; a bearing 32a, 32b for rotatably mounting the body portion 4 to a shank 38 of the burr cutter 34 with a cutting head 36 of the burr cutter 34 adjacent the slot 14; wherein the first and second guide surfaces 12a, 12b and the bearing 32a, 32b are positioned relative to one another such that the first and second guide surfaces 12a, 12b are tangential to the cutting head 36 of the burr cutter 34.

The present invention refers to a mini-blade (1) which body (2) has an inner edge (4) in which there is, at least, one transversal tab (6) that constitutes a retention means of the mini-blade (1) in an adapter device (20); between the inner (4) and the external (3) edges, the body (2) has the sufficient extension to form clamping portions (7)(8) that allow the application of clamping peripheral tabs (30). The invention also refers to an adapter device (20) that, for the mounting of a rotary work structure (40) of pneumatic roughing down, includes clamping sets (20) composed of ending supports (21)(22) and intermediary separator supports (23), all of which have clamping transversal peripheral tabs (30) that form jaws capable of clamping the clamping positions (7)(8) of the mini-blade (1). The different supports (21)(22)(23) that form the clamping sets (20) are arranged attached one to another, in train, with the mini-blades (1) interspersed in their jaws, in such a way that the toothed external edge (3) of these last ones protrudes from the clamping set (20).

The present invention refers to a mini-blade (1) which body (2) has an inner edge (4) in which there is, at least, one transversal tab (6) that constitutes a retention means of the mini-blade (1) in an adapter device (20); between the inner (4) and the external (3) edges, the body (2) has the sufficient extension to form clamping portions (7)(8) that allow the application of clamping peripheral tabs (30). The invention also refers to an adapter device (20) that, for the mounting of a rotary work structure (40) of pneumatic roughing down, includes clamping sets (20) composed of ending supports (21)(22) and intermediary separator supports (23), all of which have clamping transversal peripheral tabs (30) that form jaws capable of clamping the clamping positions (7)(8) of the mini-blade (1). The different supports (21)(22)(23) that form the clamping sets (20) are arranged attached one to another, in train, with the mini-blades (1) interspersed in their jaws, in such a way that the toothed external edge (3) of these last ones protrudes from the clamping set (20).

A file for creating a non-planar contour, in particular with a transverse curvature on a workpiece, including a longitudinal axis, at least one file element with an abrasive machining surface and a depth-stop element with a non-abrasive sliding surface, wherein the at least one file element and the depth-stop element are arranged next to one another in a plane orientated perpendicular to the longitudinal axis.

A device for filing and/or abrading the multiple surfaces and/or edges of an object end so that they are less sharp, rough, dangerous, or so that they better conform to a desired shape. Embodiments of the device may comprise filing surfaces for filing the multiple object surfaces and/or edges thereof without requiring substantial repositioning of either the device or the object with surfaces and/or edges being filed. Moreover, embodiments of the device may be useful for filing sets of both the inner and outer object surfaces and/or edges thereof without requiring substantial repositioning of either the device or the object, and therefore in a more efficient and less dangerous manner. It is anticipated that some embodiments may comprise filing surfaces arranged in a manner configured to file the surfaces and/or edges of a strut end.

A device for filing and/or abrading the multiple surfaces and/or edges of an object end so that they are less sharp, rough, dangerous, or so that they better conform to a desired shape. Embodiments of the device may comprise filing surfaces for filing the multiple object surfaces and/or edges thereof without requiring substantial repositioning of either the device or the object with surfaces and/or edges being filed. Moreover, embodiments of the device may be useful for filing sets of both the inner and outer object surfaces and/or edges thereof without requiring substantial repositioning of either the device or the object, and therefore in a more efficient and less dangerous manner. It is anticipated that some embodiments may comprise filing surfaces arranged in a manner configured to file the surfaces and/or edges of a strut end.