The Faithfull Shallow Pot Magnets are designed for clamping directly onto a steel surface. The large, powerful ceramic magnet is encased within a protective steel shell. Magnetic on one face only, creating a solid clamping force for holding and lifting metal parts. The shallow depth allows use in confined spaces. They can be secured with bolts through their centre holes and their heavy lifting capacities make them a great choice for use in industrial settings. Ref: UTTK11501