Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good for PCB's

I'm using the press to drill home-etched PCB's. It works well. Using the drill before etching, however, there is a bit of slippage. Maybe 1/20th of an inch. However, after the board has been etched, slippage is not a problem since the copper guides the drill. I'm using a dremel on its highest speed and resharped solid-carbide drill bits.