Beadsmith Electronic Bead Reamer Used to grind bead holes larger and take out unwanted burrs from bead holes before stringing Includes 2 tips to enlarge holes, 1 triangular tip to smooth, and the compact lightweight handle Reamer tips are made from steel and encrusted with industrial grade diamond Perfect for smoothing, refining, and reshaping many materials including, wood, plastic, metal, jewellery, glass, ceramic, stone, shell, pearl, gemstone, and glass beads Fine diamond grade tips allow for sharp, precise work that will leave you with a flawless finish Instructions for use: Select the required reamer tip Hold the black button while turning the collet counterclockwise to insert the reamer bit into the chuck Dip the bead and the end of the reamer tip in water, this will act as a lubricant preventing excessive wear of diamond coating Plug in the unit and rotate the power dial towards the ON position, the dial can be turned to increase the speed Remember to use a bead holder to hold the bead in place, and to always keep the tip and the bead wet Note: uses a US plug, an adaptor is required for other plug sockets