DescriptionGood for use on mild steel for finishing, cleaning imperfections. A great deal compared to your local store. Buying these in bulk saves you a ton of money. and having a few spares is handy. Use these on aluminum, wood, and rusty metal. It can be installed on electric drill conveniently. Feature- Color: As Shown.- Material: Alumina.- Size: 2.5 x 1.5 x 0.6cm.- Enhanced surface and control: resulting from the angled flaps maximizes the optimal application of pressure to the cutting surface while ensuring ease of use, comfort, and grinder control – the angled flaps enable the user to hold the angle grinder at a natural, angled positioning while still enabling the disc to maintain with the grinding surface.- Superior durability and value: st