Attributes . Cuts stainless steel quickly and easily. Quick change arbor allows you to change cutter heads with a simple push and a turn. Uses same arbor for different size cutting heads. Flange stop prevents over-drilling. Ejector spring on all sizes over 3/4" makes removing slug easier. Replaceable cobalt-steel pilot drill with split-point tip to prevent walking. Minimum chuck size of 3/8". Improved carbide quality for more durability and longer life. . Names