Hock Block Plane Irons

Hock Block Plane Irons

Hock irons have long been prized for their excellent hardness, rigidity and edge retention. They're made from ultra fine-grained high carbon tool steel, which takes a sharper edge than alloys like chrome-vanadium steel or HSS.

High Carbon irons are O-1 tool steel fully hardened and tempered to Rc62 on the Rockwell scale, much harder than ordinary tools but not in the least brittle or delicate.

For the ultimate in durability, Hock's Cryogenically Treated A-2 Tool Steel irons are significantly tougher and more wear resistant than even their own high carbon blades. Cryo irons are conditioned at -320°F and will hold an edge longer than you've ever experienced. They're a little harder to sharpen, of course, but the results are simply amazing.

Read more about how Hock blades can improve the cutting ability of your hand planes.

Fitting Your Plane

Block plane irons are fit is best determined by the width of the iron and the width of its lateral adjustment slot.

Important: please measure your original carefully to be sure you order an iron that will work in your plane.

Videos

In the video below, Jim Dillon shows how Hock Plane Irons can improve your hand planes. (Video is 5-1/2 minutes - it will take a long time to load on a slow connection)

Ron Hock on hand plane blades