A servo writer that uses a clamping push pin is disclosed. The clamping push pin includes a first clamping member that is movable relative to a second clamping member. The first clamping member is spaced from the second clamping member such that a disk drive head positioner assembly may be positioned therebetween. The spacing between the first clamping member and second clamping member is then reduced such that the push pin clamps onto the head positioner assembly. The push pin may then be moved to change the position of the head positioner assembly as required for servo writing operations.

 
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> Latch apparatus for latching an actuator arm assembly in a disk drive

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