Product details:

The original mag drill annular cutter from which all others are measured. 12,000-Series Cutters for Hougens line of Portable Magnetic Drills are available in M2 H. S. S. , TiN coated M2 H. S. S. and Modified 12,000-Series TiN coated Premium M42 H. S. S. in sizes 7/16 thru 2-3/8 (12mm - 60mm) diameters and 1 to 6 (25mm - 152mm) depth of cut.