I use this to start the tip, basically create a divot for the hand drill to sit, be centered and not slip. It doesn't require you to press really hard, less accidental cutting of the hands as well and safer in my opinion. Just use the tip to press and create your start point. Then use the hand drill to easily drill out the piece, it doesn't take much and the drill requires less pressure than when using an exact-blade in that manner. You can also use an automatic center punch to start your drill/guide hole as well.
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