3. 3 MM DIA SOLID CARBIDE DRILL, DRILL DEPTH EXACT, 5XD, SHANK DIA 6 MM FOR LOW ALLOY STEEL IS- 5517- 93 4, 6MM DIA SOLID CARBIDE DRILL WITH INTERNAL COOLANT, DRILL DEPTH EXACT 3XD, FOR LOW ALLOY STEEL IS: 551, 9MM DIA SOLID CARBIDE DRILL WITH INTERNAL COOLANT, DRILL DEPTH EXACT 5XD