import cadquery as cq
w0=cq.Workplane('YZ',origin=(30,0,0))
w1=cq.Workplane('XY',origin=(0,0,-10))
r=w0.sketch().push([(0,-24)]).circle(26).circle(21,mode='s').finalize().extrude(-60).union(w1.workplane(offset=60/2).moveTo(16,0).cylinder(60,14))