BTU 3 tip type : Single Tube Drills with Outer 4 Start Thread connection and Brazed Tips, dia=15.60 - 65mm. Each item represents a diameter range. For a specific head diameter, an order form should be filled out.
  DesignationDCNDCXOALLFDCONMSHTubeTube DiaCSPGICATGIREMgiic
  BTU-011 XX.XX 20.0120.9052.5049.4016.00018.0ST0018.0With coolant hole4841057 0
  BTU-012 XX.XX 20.9121.8052.5049.4016.00019.0ST0018.0With coolant hole4841058 0