This item features: -Bond allows free cutting action while pulling heat away from the part and into the matrix of the wheel. -Excellent on materials 55RC and above but can also be used on general purpose tool steel. -Offer a friable grain and cooler bond. -Abrasive Material: Blue Aluminum Oxide. -Applications: Cool Cutting. -Applicable Materials: Heavy Stainless Steel. Model Code Model Description AATool Shape:Type 1 Dia.:10 in Thickness:1 in Arbor Diam:2 in Grit:46 Hardness Grade:I Speed:2630 rpm Quantity:5 per carton ABTool Shape:Type 1 Dia.:10 in Thickness:1 in Arbor Diam:3 in Grit:46 Hardness Grade:H Speed:2630 rpm Quantity:10 per carton ACTool Shape:Type 1 Dia.:10 in Thickness:1 in Arbor Diam:3 in Grit:46 Hardness Grade:I Speed:2630 rpm Quantity:10 per carton ADTool Shape:Type 1 Dia.:10 in Thickness:1 in Arbor Diam:3 in Grit:46 Hardness Grade:J Speed:2630 rpm Quantity:10 per carton AETool Shape:Type 1 Dia.:10 in Thickness:1 in Arbor Diam: