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Moving on to the second part of the task,
we're going to create the lid for the

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electrical box, same again, we would select
a piece of low carbon steel mark it out to the

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required sizes of one hundred and thirty one
millimeters by one hundred and thirty five

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millimeters. Using a steel rule we would set up
the proportional dividers to 12 millimeters,

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ensuring that this is on the 135 side of the metal.

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We do two parallel lines.

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And taking the proportional dividers and
setting them back up to twenty five

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millimeters. We will transfer them onto the
opposite sides.

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Using the same technique as last time, we'd
go over to the metal bench center, punch the

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four corners and relieve them with the
Whitney punch.

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Ensuring a centre punch in on the cross
marks we would dot mark where we're going to

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punch through using the Whitney punch.

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Going back to the shee tmetal area to now
punch out the holes.

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We're now going to notch out the corners
using the tin shears.

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We now use a leather mallet,and a stake to
flatten the blade.

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We then go over to the box and pan folder and
fold the four sides to 90 degrees.

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Ensuring that we are on the line , we would clamp
the metal and fold it to 90 degrees.

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We now take the lid off the electrical box
over to the bench.

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And fit it onto the base of the electrical
box.

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If any of the sides need adjustment, this
can be done using the mallet and the stake to

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ensure that there is a good fit between the
lid on the base of the box.

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The electrical box can now be marked out for
securing screws on the four corresponding sides.