Package: 2pcs grinding disc, Grinding disc diameter: 125mm, Arbor diameter: 22.23mm, Segment width: 5mm, 2pcs 20mm arbor adapters - compatible with all M14 threaded spindle angle grinders. Quality material: Our 125mm diamond grinding wheels use a quality diamond coating, which not only makes the process faster and easier, but also ensures unmatched durability. They can smooth out roughness and irregularities in concrete surfaces. We believe that the two grinding wheels are enough for your daily home projects and DIY. Heat Dissipation Hole: The silent heat dissipation hole design not only dissipates heat but also reduces damage to the machine. Excellent Balance: Our 125mm diamond blades are very balanced, which helps prevent grinding wobble. Application: The grinding wheels are commonly used for grinding marble, granite, quartz stone, artificial stone, various ceramic products and cement, concrete, brick wall repair and polishing. They are also ideal for removing old tile layers, or