Definitions for "Scratcher"
A device fastened to the outside of casing that removes the filter cake from the wall of the hole. Designed to improve the bond of the cement to the formation face.
n: a device that is fastened to the outside of casing to remove mud cake from the wall of a hole to condition the hole for cementing.
a device used for scratching
Any serrated or sharply tined object that is used to roughen the surface of one coat of mortar to provide a mechanical key for the next coat.
One who, or that which, scratches; specifically (Zoöl.), any rasorial bird.
a workman who uses a tool for scratching
a part-time tattoo artist at best, and is not dedicated to the art full time
a person who scratches to relieve an itch