Model 63-B and welded blade products lead our complete line of blasthole stabilizers. Our original roller stabilizer, model 63-B, is specially designed for blasthole drilling. This product is positioned behind the bit to centralize and stabilize it, providing smooth rotation, controlled vibration and more effective drilling. Air is circulated through the rollers, cooling and cleaning the hardened bearing surfaces and promoting longer wear life. The result is a quality-built stabilizer that achieves better penetration rates.