Normally not palpable.
Right kidney lower than left kidney.

Palpation Maneuvers
1) Place one hand posteriorly beneath the costal margin and push upward. The other hand is placed at the level of mid-clavicular line below the costal margin and palpates the inferior pole (right side is easier) when the patient takes a deep breath.
Costovertebral angle: is the angle formed by the 12th rib and the paraspinous process.

See the Abdomen page.