Suppliers with verified business licenses
Audited Supplier Step Drag Bits also named blade bits, with a Tungsten Carbide inserts on the blades.
They are usually designed for use in soft formations such as sand, clay, or some soft rock.
Their uses include drilling water wells, mining, geothermal, environmental and exploration drilling.
Whenever possible, they should be used to drill pilot holes, for they produce cuttings are easiest to log.
Size: 2 7/8" to 24"
Thread: 2 3/8, 3 1/2, 4 1/2, 5 1/2, 6 5/8 API Reg. Pin
Drag bit are manufactured from forged high quality alloy steel and premium tungsten carbide insert, plus state of art welding technology and multiple precision heat-treatment to provide highest penetration rate and longest lifespan at roughest condition.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}