Drill Bits - Misc. - DRAG BITS
• Step Type Drag Bits are the most common type of drag bit used in the world today. They are primarily designed for soft to medium formations.
• Chevron Type Drag Bits are designed for medium to hard formation and are used in areas that contain a lot of rock and also in the oilfield for drilling out concrete casings and plugs.
Bit Brokers International supplies the best quality drag bits in the industry with sizes ranging from 1 ½” to custom built 30”. They are offered in both Chevron and Step type and in either 3-way or 4-way. Drag bits do best in soft formations such as clay or sand and in some very soft rock. They do not do well in coarse gravel or hard rock formations.
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 expation drilling. Whenever possible, they should be used to drill pilot holes because they produce cuttings that are easiest to log.