Quick print you will need to purchase some items to complete the built including a 1.5mmx300 mm stainless rod, 8x2 magnets (optional) and some rubber bumpers (also Optional). I will include links to everything I purchased its enough to make several of these so you can sell the extras or give them to someone who needs it.
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The steel rod will need the end ground down to a soft point (not sharp). I used a dremel tool with a sand paper wheel.
The rubber bumpers are used as a depth gauge so you don't push the tool too far in.
To glue the two halves together I used scigrip IPS16
