Auto-cool Vacuum brazing diamond wax filled tile hole drill(Hex Fit)

Auto-cool Vacuum brazing diamond wax filled tile drill bits(Hex Fit) are filled with a lubricating wax.

During the drilling process the leading edge of the wax melts and auto-cools the diamonds meaning there is no need to apply a secondary coolant, such as water.

Use on pistol drill, slow speed is dry drill, use in ceramic tile, polishing brick commonly,

rotate speed needs to be in 2500 turn above 3000 turn left and right sides can produce better result