Description Features: Mounts onto various types of drill bits with diameters from 3 to 7.2 mm Allows for countersinking the screw head for a flush surface or sinking it deeper into the workpiece up to 10 mm Made from high-grade carbon tool steel – maintains sharpness for a long time Maintenance: We recommend regularly cleaning the drill bits from residue, lubricating with vegetable-based oil to prevent corrosion, and storing in a dry place (steel is susceptible to rust) Package includes: Adjustable Countersink Hex wrench Made in Japan
