Embodiments disclosed herein are directed to a system for removing road material. In an embodiment, the system may include a milling drum and at least one pick mounted on the milling drum. The pick may include polycrystalline diamond at least partially forming one or more working surfaces of the pick.

A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

A washerless cutting tool assembly includes a cutting tool holder and a rotatable cutting tool at least partially disposed within the cutting tool holder. The cutting tool holder includes an alignment feature in the form of a protrusion at an axial forward end and a groove at an axial rearward end of the head portion of the rotatable cutting tool. The groove is capable of receiving the protrusion of the cutting tool holder to align the central, longitudinal axis of rotatable cutting tool with the central, longitudinal axis of the cutting tool holder. The cutting tool assembly further includes a limited rotated feature in the form of a braking ring disposed within an annular groove and a retainer ring disposed over the braking ring.

A wear-resistant armored cutting tool may be provided. The wear-resistant armored cutting tool may include a tool body, a bolster, at least one wear-resistant member, and a cutting tip. The bolster may be fixedly attached to the tool body with an end of a surface of the tool body disposed adjacent the bolster. The at least one wear-resistant member may be fixedly attached to the tool body. The at least one wear-resistant member may be disposed adjacent to the end of the surface of the tool body. The cutting tip may be fixedly attached to the bolster. The bolster, the at least one wear-resistant member, and the cutting tip may each have a material hardness which is greater than that of the tool body.

A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.

A milling system for a milling machine includes at least one cutting assembly configured to be coupled to a drum. Each of the cutting assemblies includes a base portion and an impact portion. The base portion includes a standoff coupled to the drum, a first base block coupled to the standoff, and a second base block coupled to the standoff at a position upstream of the first base block in a direction of rotation of the drum and at angle from the first base block. The impact portion includes a cutting bit and a tool holder coupled to the first base block, and a protective element coupled to the second base block.

A wear-resistant armored cutting tool may be provided. The wear-resistant armored cutting tool may include a tool body, a bolster, at least one wear-resistant member, and a cutting tip. The bolster may be fixedly attached to the tool body with an end of a surface of the tool body disposed adjacent the bolster. The at least one wear-resistant member may be fixedly attached to the tool body. The at least one wear-resistant member may be disposed adjacent to the end of the surface of the tool body. The cutting tip may be fixedly attached to the bolster. The bolster, the at least one wear-resistant member, and the cutting tip may each have a material hardness which is greater than that of the tool body.

A washerless cutting tool assembly includes a cutting tool holder and a rotatable cutting tool at least partially disposed within the cutting tool holder. The cutting tool holder includes an alignment feature in the form of a protrusion at an axial forward end and a groove at an axial rearward end of the head portion of the rotatable cutting tool. The groove is capable of receiving the protrusion of the cutting tool holder to align the central, longitudinal axis of rotatable cutting tool with the central, longitudinal axis of the cutting tool holder. The cutting tool assembly further includes a limited rotated feature in the form of a braking ring disposed within an annular groove and a retainer ring disposed over the braking ring.

A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

A rotatable cutting tool (10) includes a cutting tool body (12) having an axial forward end (14) and an axial rearward end (16). A bolster (46) at least partially received in a head portion (22) and includes a convex-shaped head portion (56) with a socket (20), a collar portion (58) and a tapered shank portion (60). The socket (20) is formed with a substantially planar side wall (20a), a bottom wall (20b), and a radius blend (20c). A hard tip or cutting insert (18) is at least partially received in the socket (20) of the bolster (46) and includes a convex-shaped conical head portion (72), a collar portion (74) and an axially-rearward portion (76) that generally conforms to the geometry of the socket (20) of the bolster (46). Between about sixty percent (60%) and about ninety percent (90%) of the cutting insert (18) is received in the socket (20) of the bolster (46), thereby reducing forces and stresses transmitted to the cutting tool (10) during a machining operation.