The Halls M2 Powerbor Cutters allow holes to be produced quickly and more efficiently than conventional drills. Due to the cutter design, the load per tooth is greatly reduced and power used by the machine is kept to a minimum. The cutters are suitable for use on steel, and produce a solid slug which is ejected when the cutter breaks through and the hole is complete. This helps to reduce problems experienced by the swarf and chips that are generated by conventional drilling. Each diameter has a maximum cutting depth of 25mm.