Key for quick change for turret pocket

A turret pocket key, comprising:

• a first slider block;
• a second slider block;
• a third slider block;
• and a fourth slider block;
• configured so that the slider blocks are retained such that the slider blocks are adapted to move relative to one another, configured so that the first slider block and/or the fourth slider block is moved to draw the first slider block and the fourth slider block relatively towards each other along an axis, and configured so that, when the first slider block and the fourth slider block are drawn relatively towards each other, the second slider block and the third slider block move outward in a direction normal to the relative direction of movement of the first slider block towards the fourth slider block, wherein the first slider block, the second slider block, the third slider block, and the fourth slider block are disposed at respective positions defined on the axis, the first slider block being disposed at a first location defined on the axis, the second slider block being disposed at a second location defined on the axis, the third slider block being disposed at a third location defined on the axis, the fourth slider block being disposed at a fourth location defined on the axis, the second slider block being disposed at the second position between the first slider block at the first position and the third slider block at the third position, and the third slider block being disposed at the third position between the second slider block at the second position and the fourth slider block at the fourth position, wherein when the first slider block and the fourth slider block are relatively drawn towards each other, with respect to a plane normal to the relative direction of movement of the first slider block towards the fourth slider block:
• the second slider block relatively moves (i) outward away from the relative direction of movement of the first slider block towards the fourth slider block in a first direction, and (ii) outward away from the relative direction of movement of the first slider block towards the fourth slider block in a second direction, and the third slider block relatively moves (iv) outward away from the relative direction of movement of the first slider block towards the fourth slider block in the first direction, and (iv) outward away from the relative direction of movement of the first slider block towards the fourth slider block in a third direction that is different from the second direction.