Magnetic Drills

Magnetic Drills for Structural Steel

Magnetic drills use an electromagnetic base to attach to ferrous steel surfaces, allowing holes to be drilled accurately in structural steel beams, plate, pipe, and fabrications without requiring a drill press or workpiece movement. The magnetic base provides the rigid support and reaction force that drilling with annular cutters requires, replacing the machine table and column of a conventional drill press with a portable unit that goes to the workpiece rather than the workpiece going to the machine. AIMS Industrial stocks Euroboor magnetic drills for structural steel fabrication, construction, and industrial maintenance applications.

Euroboor Magnetic Drills

Euroboor is a Dutch manufacturer with a strong reputation for magnetic drilling equipment across the construction, structural steel, and oil and gas sectors. Euroboor mag drills are built for sustained site use — the magnetic base provides high holding force on steel thicknesses encountered in structural work, and the drill unit is constructed to withstand the conditions of steel fabrication yards, construction sites, and industrial maintenance environments. Euroboor magnetic drills are compatible with standard Weldon shank annular cutters and twist drills, covering the drilling requirements for structural connections, cable tray installations, pipe supports, and steel fabrication work.

Annular Cutters and Drilling Performance

Magnetic drills are typically used with annular cutters rather than twist drills for most structural steel applications. Annular cutters (also called hole cutters or core drills) remove a continuous ring of material rather than converting the entire cross-section to chips, producing clean, accurate holes with significantly less torque and feed force than a twist drill of the same diameter. The result is faster drilling, longer cutter life, and better hole quality — particularly for the larger diameters (25mm to 80mm and above) common in structural steel bolt hole patterns. Annular cutters are available in high-speed steel and TCT (tungsten carbide tipped) formats, with TCT preferred for high-volume production drilling and harder steel grades.

Safe Operation on Structural Steel

Magnetic drill safety requires attention to the holding force of the magnetic base relative to the drilling forces being applied. The base must be positioned on a flat, clean steel surface free of paint, mill scale, and debris that would reduce contact area and holding force. Minimum steel thickness requirements (typically 10–13mm for full holding force) must be respected — drilling on thin plate or through-holes in the attachment surface reduces the magnetic holding force significantly. A safety strap or chain connected from the drill to a structural member is required when drilling vertically down or in overhead positions where a loss of magnetic hold could cause the drill to fall. For magnetic drill specifications, annular cutter selection, or site drilling requirements, contact our team at AIMS Industrial.