Steel Dragon Tools MD45 Magnetic Drill Press with 1-3/4" Boring Diameter & 2700 LBS Magnetic Force Steel Dragon Tools MD45 Magnetic Drill Press with 2700 lbs. maximum force. Maximum Boring Diameter: 1-3/4 in. (45 mm) Includes MT2 to 3/4-inch Weldon Adapter spindle adapter. Spindle Speed (No-Load Speed): 0-500 RPM Variable Speed Maximum Boring Depth: 7 in. (180 mm)