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Using the file, I filed the edges and corners of the two pieces of aluminum. I did this to remove any sharp edges.

The two pieces of aluminum are 64mm in length and width.

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In accordance with the drawing, I marked out where I needed to drill on one square of aluminium.

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Using the pneumatic drill, mark out where the holes need to be drilled by twisting the head of the drill and making a small dent in the aluminum. I did this on one square of aluminium.

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Front.

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Back.

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Using the pneumatic drill, I drilled the holes into one square of aluminum using the #40 clearance drill.

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Clamp both plates together and drill through the holes with a #40 clearance drill and secure plates with red skin pins.

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File

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Ruler.

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Engineer square.

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Pneumatic drill.

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Pneumatic drill.

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Pneumatic drills.

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Red skin pins.