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.
Types of Drag Bits
Step Type Drag Bits:
They are primarily designed for soft to medium formations.
Three-Wing and Four-Wing:
Three-wing bits tend to drill faster whereas four-wing bits are longer lasting, more durable, and drill a straighter hole.
Chevron Type Drag Bits:
Chevron-Type drag bits are recommended for drilling in slightly harder and more consolidated materials than step-type drag bits such as hard shales, limestones, and tougher gravels.
Product Name: | different rock hardness drilling button bit |
Description: | For different rock hardness mining,tunneling,quarrying button bit Button bit Made with high quality of best quality alloy steel bar and tungsten carbide, through heat treatment. |
Material: | Alloy steel bar and tungsten carbide bit |
MOQ: | trial order 1-5pcs |
Body Type | Normal type and retract type |
Diameter | 80mm-300mm |
Button bit shape | Spherical and Ballistic |
Face shape | Flat shape and Drop-center shape |