These 1/2" Snap-On style SUNBURST® Radial Discs allow swift grit changes. Like all the other types of SUNBURST® Radial Discs, they are considered the “absolute best” for finishing and polishing hard-to-access areas without removing detail or causing flat spots. The sharp, clean, specially treated ceramic abrasive grain embedded throughout their thin flexible bristles enables them to work faster and last longer than rubber wheels, brushes, buffs and conventional sanders. SUNBURST Radial Discs generate minimal dust and heat and eliminate the need for polishing compound. Ideal for finishing, smoothing and high-luster polishing of all precious, semi-precious and non-precious metals, acrylics and ceramics. Must be used with a Snap Mandrel (sold separately) which is only available on a 3/32" shank.