Every woodworker should have at least one shoulder plane in their tool kit. Shoulder planes are indispensable for trimming dados, grooves, rabbets, tenons, and shoulders. If you cut the majority of your joinery on a table saw, or by hand, a shoulder plane is one of the quickest ways to eliminate the marks left by a saw blade, and to fine-tune your joints. In a pinch you can even use one to form a shallow rabbet. Contrary to what you might think, a shoulder plane is just as easy to set-up and use as any other hand plane.
The body of the WoodRiver shoulder plane is Cr40 stress-relieved ductile steel, machined square and flat, and the blade is Mn65 tool steel hardened to 60-64 Rc which combines toughness with the ability to take a keen edge. The blade advancement mechanism is smooth and precise.