1-3/8" Hole Cutter with 3/16" Cutting Depth Specifically designed for hand held operations in materials, this carbide tipped steel plate cutters stay sharper longer than high speed steel or bi-metal hole saws. They produce drill press quality holes even in hand held operations. For cutting materials over 3/8" up to a depth of 1/2", a drill press is recommended. Features: 1-3/8" Bit Diameter For use with Quick Change Arbor 49-57-0035 1/2" Cutting Depth Carbide Construction 1 Pound Since its founding in 1924, Milwaukee has focused on a single vision: To produce the best heavy-duty electric power tools and accessories available to the professional user. Today, the Milwaukee name stands for the highest quality, durable and reliable professional tools money can buy.