This blade is a direct replacement for the one included with your Bench Dog® Tools
No. 4 Smoothing Plane (#58837, and also the older model) and
No. 5 Jack Plane (#59102). Having a spare iron on hand ensures you'll always have a sharp edge to deal with challenging grain, and you can also purchase multiple blades and grind each to a different bevel angle to suit a range of applications. The blade is made from 1/8'' thick hardened carbon steel for reduced chatter and excellent planing characteristics.
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.