O1 1-3/8″ Block Plane Blade with 7/16″ Narrow Slot

Handmade and 17% thicker than standard blades, allowing closer throat-opening settings, finer shavings, and reduced chatter. High-carbon (.95%) tool steel and hardened to Rc62, they hold a razor-sharp edge. Fits Stanley, Bailey, Record, Footprint, and most other planes. 3/32″ thick, USA, honing required before use. Block plane blades are 4-1/2″ long with rear depth adjustment grooves. Wide-slot blades only fit the new Stanley block planes. Block plane blades are 4-1/2″ long 3/32″ thick High-carbon (.95%) tool steel Hardened to Rc62