Optimized bit contour design for medium to soft homogeneous formations. Involute cloth teeth, asymmetric blade design, the bit is balanced by force, inhibiting the trend of swirling. Composite gauge low torque design for improved drilling efficiency. The bottom hole flow field simulation (CFD) hydraulic balance design is more conducive to bit cleaning and cooling. High-performance composite sheets are used in combination to improve the life of the drill. The above composite sheet drill specifications: 6", 6 1/2", 8 1/2", 9 1/2" all available for sale! Ultrasonic Level Meter,Sonic Level Sensor,Ultrasonic Liquid Level Gauge,Ultrasonic Liquid Level Measurement Jiangsu Baichuang Instrument Group Co.,Ltd , https://www.subcip.com