A lame (/lɑːm, læm/) is a double-sided blade that is used to slash the tops of bread loaves in artisan baking. A lame is used to score (also called slashing or docking) bread just before the bread is placed in the oven.
just to make it official, after I printed this tolI, I recommended a thumb-protector mod for the design to avoid the situation when one tries to remove the cap with a thumb push, which action might cause serious cut on said finger.