There are closed body blocks and rebate full width mouth blocks capable of clearing up to the edge of a shoulder or rebate. Some have an adjustable mouth to provide cut support for the finest shavings.
There are three blade material options: High Carbon SK4 steel, Japanese Blue Paper and Cryogenically treated High Speed Steel (HSS).
These high precision planes feauture a fine blade feed and a polished cap iron which lies comfortably in the hand.
A cast steel construction is some comfort if dropped onto a concrete floor where fragile cast iron bodies are more likely to crack.