The Creations Unlimited Diamond Reamer set is a must-have for every workbench. Three needle-pointed diamond-coated files are ideal for enlarging holes and detailing delicate projects. Set includes a heavy-duty wood handle for better control and three needle pointed diamond files. Great for finishing hard materials. Washable and long lasting.WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov