38mm Diameter 11° Taper Angle 50mm Body Length Tapered Button Bit For Rock Drilling Product Overview The Q7-38-11°-50 Tapered Button Bit is engineered for top hammer drilling applications, delivering extended service life, higher drilling speeds, straighter holes, and superior durability in demanding stone quarrying and mining operations. Key Specifications Diameter 38mm Bit Body Length 50mm Taper Angle 11° Bit Face Design Flat face (1 front flushing hole, 1 side flushing