The cordless bead reamer is a great tool to smooth and enlarge bead holes. Perfect for carving metal clay as there is not too much torque. Light weight and easy to use, it comes with 3 tips, small pointed, 45 degree edger and large pointed reamer. With a comfortable molded handle, and at 10,000 RPM's, bead reaming is made easy. This unit is powered by 2 AA batteries (not included).