I learned how to make a European kitchen self-closing hinge free swinging due to an emergency. I had visited the local supply company and there were no free swinging cupboard hinges available. I needed them for a medicine cabinet that I was making that had a touch door on it. I wanted to use the hidden style or concealed European hinges.
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If you don’t want to pay for an expensive drill bit, here’s how to drill for the special cabinet door concealed cup hinges. European hinge is the technical name for this piece read How to Drill european Cabinet Hinges