my tool weld isnt working why? it welds but on the wrong place.

for i, v in pairs(script.Parent:GetChildren()) do

if v.ClassName == "UnionOperation" or "Part" or "WedgePart" then

weld = Instance.new("Weld", v)
weld.Part0 = v
weld.Part1 = script.Parent.Union.CFrame
weld.C0 = v.CFrame:inverse()
weld.C1 = script.Parent.Union.CFrame:inverse()  
v.Anchored = false  






end 
end

so the result of this would be the second half of the tool welding a far distance from the Handle.