Premium Flexible Freeform Drill Bit is designed to drill through steel plates as well as wood. 118 degree point provides more gradual breakthrough and limits the grabbing that occurs when using a traditional 135 degree point. Split point tip and slow spiral design improves bit self-cleaning and eases pull back. 3/16" flexible shaft allows you to easily align the bit along a stud for reference drilling. Holes in drill bit head and chuck end for attaching wire. Bit have many features that make them your best choice for a wide variety of retrofit situations. High speed steel offers superior functionality.