They handed down their knowledge in the art of how to split and cut stone by means of this secret language from generation to generation.

Although the Ents could split ordinary stone with ease, their assault on the tower only left a few scratches and chips on its surface.

We can split stone like the roots of trees, only quicker, far quicker, if our minds are roused!

Splitting stone, using pneumatic drills is arduous work and so wire-saws have been introduced into the quarries, replacing much of the plug and feather cutting.

She ended with a cackle that might have split stone.

Plug and feather, also known as plugs and wedges, feather and wedges, wedges and shims, pins and feathers and feather and tare refers to a technique and a three-piece tool set used to split stone.