clay spade

clay spade

An attachment for a pneumatic paving breaker, with a wide, flat chisel-like working blade that cuts through cohesive material like clay.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Clay spade c.1930: useful for digging soils full of clay as the cut-away blade meant the soil would not stick to the spade, making digging much easier.