Veritas #4 & 5-1/4 Replacement A2 Blade
Veritas code 05P24.02
Replacement Plane Blade for #4 Smoothing Plane 05P26-01 (05P26.01)
Replacement Plane Blade for #5-1/4 Smoothing Plane 05P24-01 (05P24.01)
The 2" (50mm) wide lapped blade is a full 1/8" (3.2mm) thick, made of A2 tool steel. A2 blades are air-quenched and double-tempered to a hardness of Rc60-62. They hold an edge longer than most high-carbon steel blades, but also take more effort to sharpen.
Blade only, does not include the Smoothing Plane