Just out of interest you state in post #1 that circuits are in 4.0mm radials. As we now know it is imperial are you certain that it is 4.0mm equivalent? It could be 2.5 equivalent which to the untrained eye might well appear to ne 4.0mm.
 
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Just out of interest you state in post #1 that circuits are in 4.0mm radials. As we now know it is imperial are you certain that it is 4.0mm equivalent? It could be 2.5 equivalent which to the untrained eye might well appear to ne 4.0mm.
just to add to wire pullers comment.

if you cant visually tell the difference grab a set of calipers.

they come in very handy from time to time especially with small drill bits that you cant see the numbers on anyway even when new
 
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CU Updated But No Rewire
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Electrical Wiring, Theories and Regulations
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alamski,
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