Spring, Quill 

Spring, Quill
Part Number: 2169
Weight: 0.05 lb

Price: $3.25

In stock
Quill spring on the X1 Micro Mill. Approx. dimensions 117mm x 37 mm. Wire Diameter is 2.5mm.
Spring Type Compression
End Type Closed
Overall Length 4.6" (117 mm)
Outside Diameter 1.46" (37.0 mm)
Wire Diameter 0.10" (2.5 mm)
Wire Shape Round

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

Item No Models
105 4660 HiTorque Micro Mill 4700 HiTorque Micro Mill
27  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.