At one's elbow and At one's fingers' ends

At one's fingers' ends and at one's elbow are semantically related. In some cases you can replace phrase "At one's fingers' ends" with "At one's elbow", this phrases are similar.

At one's elbow and at one's fingers' ends are semantically related. Sometimes you can replace phrase "At one's elbow" with "At one's fingers' ends", this phrases are similar.