Husqvarna Red 450B-R | 20 125 1DP RED 450B-6R-NN | 542751066
Part Number: 542 75 10-66 (542751066)
The Husqvarna Red 450B-R (Article 542751066 / 542 75 10-66) is a professional-grade diamond blade engineered for cutting green concrete, asphalt over concrete, and asphalt containing hard aggregate. This blade features integrated undercut protection as a standard specification to ensure durability and consistent performance during demanding cutting operations.
Product Features

Smooth and easy start
The segments' design reduces their contact with the concrete surface. This provides a quick and controlled start when using a new blade.
| Product data | |
|---|---|
| Performance level | Gold |
| Blade configuration | Narrow slots |
| Coolant | Wet |
| Arbor hole pattern | DP |
| Power range, min hp | 5 hp |
| Power range, max hp | 20 hp |
| Dimensions | |
| Diameter inch | 20 in |
| Arbor diameter | 1" |
| Segment length inch | 1.575 in |
| Segment width inch | 0.125 in |
| Segment height inch | 0.43 in |
| Packaging length (Calc) | 22.52 in |
| Packaging width (Calc) | 22.52 in |
| Packaging height (Calc) | 0.984 in |
| Article gross weight (Calc) | 10.97 lbs |