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Center drill removes center drill

Nov. 1, 2004
I use a center drill to remove broken center-drill tips from workpieces. I grind out the center of a center drill, leaving two cutting lips. This tool then drills down along the sides of the tip embedded in the workpiece. Once this is done, I gently tap o
I use a center drill to remove broken center-drill tips from workpieces. I grind out the center of a center drill, leaving two cutting lips. This tool then drills down along the sides of the tip embedded in the workpiece. Once this is done, I gently tap out the column left standing in the hole.

Mike Giaraffa
St. Louis

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