VEVOR Magnetic Drill, 1450W 1.57" Boring Diameter, 12500N 800 RPM Portable Electric Mag Drill Press, with Variable Speed, Drilling Machine for any Surface Home Improvement Industry Railway 12500N Magnetic Force Excellent Performance Efficient Cooling System Durable Body & Robust Motor Considerate Details Versatile Usage Max. Boring Diameter(Twist Drill): 0.1-0.63 in / 3-16 mm,Tap Size: M3-M16,Max. Boring Diameter(Coring Drill): 1.57 in / 40 mm,Max. Boring Depth: 2 in / 50 mm,Max. Boring Depth (Twist Drill): 3.9 in / 100 mm,Max. Travel Distance: 8.66 in / 220 mm