Reaming drilling tools Reaming drilling tools are used when a large diameter is needed to be reamed out after a pilot hole is drilled to a depth. We manufacture pilot reaming drilling tools, domed reaming button bits and adapter reaming button bits. Pilot reaming drilling tools consist of pilot adapters and reaming button bits; however, both domed reaming button bits and adapter reaming buttons bits are one-piece designed. Parameters • Thread size: R25, R28, and R32. • Pilot adapter head diameter: 26mm to 40 mm. • Pilot bit degree: 6°, 12° • Reaming button bit diameter: 64mm to 225mm. • Reamer button bit degree: 6°, 12° Features • Alloy buttons are hot mounted into the drill bit, ensuring the bit good accuracy and durability; • Reliability ensured by premium drill bit materials and premium alloy button; • Different types designed for different drilling scenarios and rock conditions; • High speed and drilling efficiency; • Cost-effective, good performance with reasonable price. Applications Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.