Supply88 Key Jacks support the end keys for leveling keys with a straight edge. Includes zipper case (Case color and style may vary from photo).
How to use:
With the front punchings removed from A0 and C8, the Key Jacks are to be placed over the front rail pins, under the keys. To adjust, turn the top adjuster counterclockwise to raise the height of the keys to achieve the target height. When the height is adjusted, turn the black adjustment locking ring counterclockwise until it locks against the top adjuster, preventing the adjuster from rotating.
Using the Key Jacks to support the end keys provides a solid base to support your straight edge (we recommend the WNG straight edge). The Key Jacks have a height range of 13mm to 20mm.