Walter Make Pilot Drill Dia. 6. 1x34x91mm A6181TFT with coolant through Walter Titex Drill, Walter Solid Carbide Long Drill Dia. 6. 1x110x148mm A6589DPP with coolant through Walter Titex Drill, Walter Solid Carbide Long Drill Dia. 6. 1x194x234mm DC160- 25- 06. 100A1- WJ30EU with coolant through Wal