Holder for drill-head coating

Coating facility with holders for carrying drills in a coating facility, each holder having a first wall perforated with first holes and a second wall at a distance from the first wall and perforated with second holes or slits that are aligned with the first holes in such a way that drills can be inserted each into the first holes and the same drills simultaneously into the second holes or slits, wherein the holder comprises at least a third wall at a distance from the second wall and which is suitable for serving as a stop for the drills inserted in the first and second holes or slits and wherein at least the first wall and the third wall are curved along segments of a circle and thus have curves designed in such a way that after inserting the drills up to the respective stop, they protrude as a whole with the drill tip from the holder following the segment of circle of the third wall,

• characterized in that the holders are placed in the coating facility in such a manner that during coating, the drills can be presented to a coating source in a circular path with essentially the same minimum distance from the coating source.

Method for coating a series of drills comprising the steps of inserting the drills for coating in at least one holder and rotating the at least one holder in a circular path,

• characterized in that the at least one holder comprises a first wall perforated with first holes and a second wall perforated with second holes or slits, the first wall and the second wall being curved along segments of a circle, and
• characterized in that the drills are inserted in the at least one holder such that tips of the drills protrude from the holder and axes of the drills are not parallel to a rotation axis of the at least one holder.

Holder for carrying drills in a coating facility, having

• a first wall perforated with first holes and
• two second walls placed at a distance from the first wall and perforated with slits that are aligned with the first holes in such a way that drills can be inserted each into the first holes and the same drills simultaneously into the slits,
• wherein the holder comprises at least a third wall at a distance from the two second walls and which is suitable for serving as a stop for the drills inserted in the first holes or slits and wherein at least the first wall and the third wall are curved along segments of circle and thus have curves designed in such a way that after inserting the drills up to the respective stop, they protrude as a whole with the drill tip from the holder following the segment of circle of the third wall.

Holder for carrying drills in a coating facility, having

• a first wall perforated with first holes and
• two inner walls comprising a first inner wall with first slits, and a second inner wall with second slits, the first and second slits in a non-parallel relationship relative to one another, and the two inner walls placed at a distance from the first wall and aligned with the first holes in such a way that drills can be inserted each into the first holes and the same drills simultaneously into the slits,
• wherein the holder comprises at least a third wall at a distance from the two inner walls and which is suitable for serving as a stop for the drills inserted in the first holes or first and second slits and wherein at least the first wall and the third wall are curved along segments of circle and thus have curves designed in such a way that after inserting the drills up to the respective stop, they protrude as a whole with the drill tip from the holder following the segment of circle of the third wall.