Label, Z-Axis Position Indicator 

Label, Z-Axis Position Indicator
Part Number: 2116
Weight: 0.01 lb

Price: $0.95

In stock
Z-Axis Position Indicator Label - Self Adhesive

In your instruction manual, this part appears on the parts list as:

Item No Models
118  Harbor Freight 47158 Central Machinery Micro Mill
Clarke CMD10 Metalworker Micro Mill
Various X1-US SIEG Micro Mill
Click your model to see the complete parts list.