The versatile 3/16 In. (4.8 mm) diameter Diamond Coated Wheel Point is coated in diamond particles for quick and easy material removal in hard materials. diamond coated wheel points work well for fine detailed work in wood, jade, ceramic, glass, hardened steel, semi-precious stones and other hard materials. The cylinder shape of the accessory allows for deep removal of material, cuts flat areas, round edges and makes stop cuts and V-cuts. The accessory tip makes flat bottom slots and grooves, flat side cuts, and makes V-cuts when held at 45-degrees.