This segment shows our Zirconia flap disc is grinding common.<br> Zirconia flap discs have more significant effect in terms of grinding hard alloy steels and stainless steels.<br> Obviously, the grinding sparks of Zirconia Flap Disc are stronger than Aluminium Oxide Flap Discs, which indicates than Zirconia Flap Disc is more excellent in grinding and polishing.<br> color: blue<br> Made of high-quality alumina zirconia grain.Durable, lightweight fiberglass to absorb tool vibration and provide extra strength. Superior cut rate and service life.<br> 80 Grit 50mm (2 inch) diameter,overlapping abrasive strips with a cooler and more efficient grinding process.<br> Safety torque spiral design made for quick change, with strong flexibility.<br> perfect for grinding, blending and finishing on a wide range of metal and many other surfaces.<br> Fits for electric drill, grinder and any electric tools.<br> Material:Alumina<br> Type: Quick Change / for Roloc<br> Size:50mm(2inches)<br> Grit: 40/60/80<br> Speed: 20000 RPM<br> Net Weight:135g<br> Package Contents:<br> 30* sand discs (10 each for 40/60/80 mesh)<br> 1* pole<br> Only the above package content, other products are not included.<br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.