The abrasive stone head is high quality material red corundum sand with uniform particles, sharper and more durable, good abrasion resistance, can be used for long time. to remove rust from metal castings and will not rust or out like the steel brush. tool grinding stone wheel head can play an polishing effect with uniform grit, wear-resistant, abrasive grain cutting sharp, grinding stainless steel and other metals with less dust, much grinding, save time-off. The surface is cleaner and brighter after polishing. The sanding wheel set contains 3 sizes of grinding stone: 10mm cylinder shape, 15mm cylinder shape, 10mm shape(14 pcs each size). The 1/8inch(3mm) can be used with power drills and tools. Abrasive mounted stone grinding set suitable for trimming, polishing and grinding a of objects:mold, metal, plastic, jade, and wood, etc. Multiple design fit into spaces for other grinding and shaping needs, such as curved, flat and slotted surfaces. color:As shown Material:Chrome corundum Package Contents: 1 set x for grinding (42Pcs) Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.Products from LUOLV's store