Magnetic drills
- Fast delivery Direct from our warehouse in Germany, delivered within 2–7 working days.
- Secure payment On account, prepayment (2% discount) and all standard online payment methods.
- German brand Service and spare parts direct from Germany.
Magnetic drill for core drilling in steel
A magnetic drill is a pillar drill that attaches itself to the workpiece using an electromagnet. Instead of bringing the steel beam to the machine, you place the machine on the beam, switch on the magnet and drill on the spot, even on a wall or overhead. Our magnetic core drilling machines use HSS hole saws with diameters of up to 35 and 50 mm to drill into steel, in steel construction, on railings, gates, beams and plant structures.
How the magnet holds: holding force and material thickness
The magnetic base attaches to the workpiece with a force of 14,800 or 15,600 N, which is equivalent to approximately 1.5 tonnes. This force requires ferromagnetic steel of sufficient thickness and a clean, flat surface; on thin sheet metal, rust, paint or stainless steel, the magnet holds less firmly or not at all. A holding force sensor only releases the motor once the holding force is sufficient; the safety belt secures the machine in the event of a power cut; and the overload protection stops the motor before the core drill becomes jammed.
HSS hole saw with Weldon shank
A core drill cuts only the ring, not the entire surface, and therefore requires only a fraction of the force needed by a Twist drill bit of the same diameter. Our machines have a 19 mm Weldon chuck; the core drill is clamped in place with two screws, and the ejector pin pushes the core out after drilling. Coolant is fed from the coolant reservoir via the shank directly to the cutting edge, which extends the tool’s service life. Suitable HSS hole saws are available individually and in sets.
Buying a magnetic drill: drilling diameter, stroke, speed
| Machine | Core drill up to | Holding force | Speed | Weight |
|---|---|---|---|---|
| MKB-35HD | 35 mm | 14,800 N | 100 to 830 rpm, continuously variable | 12 kg in carrying case |
| MKB-50HD | 50 mm | 15,600 N | 100 to 810 rpm, continuously variable | 13 kg in carrying case |
Both feature soft start and infinitely variable speed: large core bits run slowly at full torque, whilst small core bits and Twist drill bits run quickly. If you mainly drill holes up to 35 mm for screws and anchors, choose the MKB-35HD; if you drill through-holes and large bolted joints, choose the MKB-50HD.
Why choose magnetic drills from Kernlochbohrer.com
Our magnetic drills come in a carrying case with handles, a coolant reservoir and a safety strap; carbon brushes are available as spare parts. Over 5,000 professionals trust us, and we are Trusted Shops certified. We’ll advise you on which core drill bit is suitable for your machine and your steel over the phone, by email or via WhatsApp.
Get in touch with us
Do you have any questions or would you like some professional advice? You can contact us in person, by telephone, by email or via WhatsApp.
Get in touch now