✅ 12" Roller Cone Hole Opener 12-in (30.5-cm) HOLE OPENER – Built to deliver precision engineered performance, this 12-in (30.5-cm) hole opener is designed to maximize production and cone life. Available in a multi-cone configuration with premium TCI cutters (IADC 637), it provides an effective solution for soft rock, fractured rock, cobble, and hard rock conditions. Configured with a 7.875-in (20-cm) stabilizer, this tool enhances borehole stability and tracking in medium to larger diameter reaming applications. These tools are rebuildable and designed to provide a reliable fit for your job requirements.