Youngwhisk
Well-known member
abbey road d enfer said:I always have the workpiece free, supported flat on a wooden martyr, where I can easily move it and allow the tip of the bit to follow the punch.
I do the same thing when drilling aluminum or acrylic but if practical when drilling steel I will also clamp (not contacting the work piece) something to the table taller than the work piece in case the bit grabs and causes the work piece to spin (which has happened more than a few times).