import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-79,0))
r=w0.sketch().push([(-49,78)]).circle(22).push([(-51,71)]).circle(4,mode='s').finalize().extrude(141).union(w0.workplane(offset=158/2).moveTo(68,-97).cylinder(158,3))