The arm stays where you left it. Covers the hole that the arm clutch is inserted into. It uses a 1/8" Allen key to tighten.

Length: 0.0000 in
Width: 0.0000 in
Height: 0.0000 in
Weight: 0.100 oz
Packaging: 0.0000 kg
Units in box: 1
Parts by Make/Model > Kahler Parts > 2760 Steeler - Fulcrum