Capacity means max annular diameter
Portable mag drills are commonly rated by the largest hollow annular cutter they can swing. MagDrill maps your required hole in millimeters to three verified VEVOR US classes.
Buy for routine holes, confirm depth
Industry guides advise sizing for the holes you cut most often. Always check published coring depth against plate thickness — diameter alone is not a depth guarantee.
Coolant, magnet, and workpiece
Annular cutters need coolant. Confirm magnet force on clean steel. Secure thin or unstable work so the magnet cannot walk.
Safety rules this screen never relaxes
Confirm live nameplate diameter and depth. Use coolant. Keep hands clear of the cutter. Ratings are manufacturer claims — verify the live listing. Affiliate tracking is pending.
Class ladder on this site
MagDrill maps required mm to three verified VEVOR US drills: 35 mm (1.4 in), 50 mm (2 in), and 60 mm (2.4 in). Sources reviewed include manufacturer coring claims on the linked listings checked 2026-09-10.