12-1/2-Inch Planer Blades For Craftsman 351.21722 & 21780, Replace 217220- Set of 2
- 12-1/2-Inch replacement knives for Craftsman 351.21722 & 21780, Replace 217220
- Made of High Speed Steel for longer cutting life
- Easy to install, Double-edged "reversable" high-speed steel construction
- Set of 2, Plastic case packaging
- Blade material: M2/SKH51/W6Mo5Cr4V2 Hardness: HRC 65-68°
The blades are ground with both a primary bevel and a secondary bevel close to the edge. The blades are razor sharp and ready to go.