Loading…

High Quality, Good Price, Water Well PDC Srilling Bit for Coal. Extended Service Life: Lasts 10 to 30 times longer than normal carbide drills. High Drilling Efficiency: Fast speed and high efficiency in complex rock formations. Customizable Color: Available in Golden or Customized colors. Versatile Application: Ideal for coal mine gas drainage, water wells, and grouting. Super-hard Material: Made of Alloy Steel, Diamond, and Carbide for wear resistance. ISO9001 Certified: Manufactured under ISO9001:2015 quality management system. Fast Delivery: Prepared to deliver within 1 week if in stock. Free Samples: Some samples can be provided free of charge.