SDS PLUS Stop Bits MILWAUKEE’s SDS Plus Shank Stop Bits are ideal for use with drop-in anchors. The stopping collar controls the drilling depth allowing for repeatable, fast and accurate holes. The patented flute geometries remove debris rapidly while maximizing impact energy. The centering tip reduces bit walking for exact spot drilling. A variety of bits are available for the most common drop-in anchor sizes. Please see anchor manufacturers’ guides for correct stop bit to be used with anchor.