import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,5,0))
w1=cq.Workplane('XY',origin=(0,0,6))
r=w0.sketch().arc((-47,19),(-33,-8),(-19,19)).arc((-33,9),(-47,19)).assemble().finalize().extrude(-9).union(w1.workplane(offset=44/2).moveTo(-18,1).cylinder(44,1))