The DEWALT DW8751H 4-1/2" X .045" X 5/8"-11 HP Aluminum Oxide Cutoff Wheel features a mini hub design, allowing for more cuts per wheel vs. standard hub design. A thin .045" wheel design for fast, burr-free cutting, along with a 5/8”-11 hub that allows for fast, tool-free wheel changes. Now available in Type 1, the cutting wheels cover a wide range of metal cutting applications. The wheels are made of high-concentration ceramic grain for long life and aggressive material removal.