1 The product is made of high quality M42 steel, high hardness, good wear resistance and long service life. 2 Hole saw is processed by precision electron beam welding. The welded interface is not prone to cracks and the surface is smooth. 3 The product has been heat treated and the hardness has been greatly improved. 4 The product is suitable for the opening of various types of materials, such as plastic, wood, aluminum, etc. 5 Hole saw is suitable for use with bench drill and electric drill. It has precise and convenient hole opening.

What's in the box
14 x Bi-Metal Hole Saw Cutter Kit