Spring, Adjustable Dial 

Spring, Adjustable Dial
Part Number: 2166
Weight: 0.01 lb

Price: $0.34

In stock
Spring, Adjustable Dial

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

Item No Models
16 4660 HiTorque Micro Mill 4700 HiTorque Micro Mill
63  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.