A drag bit is a drill bit usually designed for use in soft formations such as sand, clay, or some soft rock. However, they will not work well in coarse gravel or hard rock formations. Uses include drilling water wells, mining, geothermal, environmental and exploration drilling.
3-Wing step-type drag bits are designed to drill the same material in a faster time-frame than the 4-Wing type.
Step bits are used for soft to medium formations (From sand to clay and shale).
