Package include - 72 Pcs 1/8" Shank mounted stone grinding wheel heads: 10/15mm cylinder shape, 10mm bullet shape.(24 Pcs each size). Convenient to carry and store.Various model to satisfy your need..Strong & Durabale Material - Made of upgraded abrasive materials, the grinding stones has good wear resistance, uniform particles. They can be cleaned and restored after long-term use.Glued with a big glob ofglue onto the shaft, each one was well adhered..Unique Design - The bullet/cylinder shape grinding bits fit into tight spaces for other grinding and shaping needs. Such as curved, flat and slotted surfaces. Ideal for sanding after beveling holes in metal and wood..Great Polishing Effect - Play an excellent polishing effect especially for stainless steel and other metals with low noise and less dust. Won't rust and fall out like the steel brush..Wide Application - The abrasive sanding bits are applied in electric drills, cordless drills, die grinders. Used for grinding, polishing, deburring of metal, wood, plastic and dog nail toenail grinder..Warm Tip - For your safty, please make sure you wear SAFETY equipment such as a face shield, glasses (or Full Coverage Goggles) and gloves.