Plug Maker Drill Case
thingiverse
Nice solid model. I've done several variations to it over the years and they've held up in a garage environment. You can buy this 4Pcs Carbon Steel Wood Work Plug Cutter Cutting Drill Bit Set 6/8/10/13mm here. Amazon offers a great price on this product, and with free shipping, you'll be able to get it quickly.
Download Model from thingiverse
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