A cutting tool for face milling includes insert pockets for the fixing of cutting insert. The cutting inserts can be fixed in the insert pockets, wherein the cutting inserts and insert pockets are designed such that, when the cutting inserts are fixed within the corresponding insert pocket, each cutting insert presents: a primary and a secondary cutting edge. The intersection between the primary and the secondary cutting edge of one cutting insert being axially inwardly and radially outwardly offset from the intersection between the primary and the secondary cutting edge of another cutting insert. A lead angle defined between the primary and the secondary cutting edges is less than 30°.

An apparatus for precision shaving is provided. In one embodiment, the apparatus includes an endmill cutter, a base frame, and a motor adjacent to the base frame and having a shaft on one end. A coupler is positioned between the shaft and the endmill cutter. A positioning slide is housed within the base frame and a coupler frame and a first gear are fastened to the positioning slide. A second gear is adjacent to the first gear, the second gear having a set of first teeth and a set of second teeth positioned opposite the set of first teeth. The set of first teeth and the set of second teeth are separated by a gap.

An apparatus for precision shaving is provided. In one embodiment, the apparatus includes an endmill cutter, a base frame, and a motor adjacent to the base frame and having a shaft on one end. A coupler is positioned between the shaft and the endmill cutter. A positioning slide is housed within the base frame and a coupler frame and a first gear are fastened to the positioning slide. A second gear is adjacent to the first gear, the second gear having a set of first teeth and a set of second teeth positioned opposite the set of first teeth. The set of first teeth and the set of second teeth are separated by a gap.

A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves.

A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves.

The invention relates to a device for machining a flat workpiece, which comprises: a machine stand which comprises a support surface for a flat workpiece, wherein the support surface is formed by at least one counterholder, on the front face of which the workpiece can be placed, a hold-down unit, by means of which the workpiece is pressed against the support surface, and a processing head which can be moved relative to the support surface for the machining of the workpiece, wherein the at least one counterholder comprises a vibration damper which acts in a direction perpendicular to the support surface.

The invention relates to a device for machining a flat workpiece, which comprises: a machine stand which comprises a support surface for a flat workpiece, wherein the support surface is formed by at least one counterholder, on the front face of which the workpiece can be placed, a hold-down unit, by means of which the workpiece is pressed against the support surface, and a processing head which can be moved relative to the support surface for the machining of the workpiece, wherein the at least one counterholder comprises a vibration damper which acts in a direction perpendicular to the support surface.

According to various embodiments, a workpiece planarization arrangement may include: a chuck including at least one portion configured to support one or more workpieces; and a planarization tool configured to planarize the at least one portion of the chuck and to planarize one or more workpieces on the at least one portion of the chuck; wherein the at least one portion of the chuck includes at least one of particles, pores and/or a polymer.

According to various embodiments, a workpiece planarization arrangement may include: a chuck including at least one portion configured to support one or more workpieces; and a planarization tool configured to planarize the at least one portion of the chuck and to planarize one or more workpieces on the at least one portion of the chuck; wherein the at least one portion of the chuck includes at least one of particles, pores and/or a polymer.

According to various embodiments, a workpiece planarization arrangement may include: a chuck including a support carrier; and a workpiece-support replaceably mounted on the support carrier; and a planarization tool configured to planarize the at least one portion of the workpiece-support and to planarize one or more workpieces on the at least one portion of the workpiece-support.