plug and feather
English
The working principle of the plug and feathers
Noun
plug
and
feather
(
uncountable
)
A
technique
used to
split
stone
, using a
metal
wedge
(the plug) and two tapering
shims
(the feathers).
This article is issued from
Wiktionary
. The text is licensed under
Creative Commons - Attribution - Sharealike
. Additional terms may apply for the media files.