round-grinding
1International Grooving & Grinding Association — (IGGA) Logo Industry Grooving, grinding, concrete pavement restorati …
2Indian Grinding Rock State Historic Park — Chaw se Indian Grinding Rock State Historic Park is a historical state park located in the Sierra Nevada foothills of California, eight miles east of Jackson. The park is named after a great outcropping of marbleized limestone with some 1,185… …
3Straight razor — A straight razor with square point and a double transverse stabiliser Main article: Razor A straight razor is a razor with a blade that can fold into its handle.[1] …
4hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
5ARCHAEOLOGY — The term archaeology is derived from the Greek words archaios ( ancient ) and logos ( knowledge, discourse ) and was already used in ancient Greek literature in reference to the study of ancient times. In its modern sense it has come to mean the… …
6Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
7Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …
8Machining — Machine shop redirects here. For the record label, see Machine Shop Recordings. New Guinea in 1943. Mobile Machine Shop truck of the US Army with machinists working on automotive parts. Conventional machining is a form of subtractive… …
9Faceting machine — A faceting machine is broadly defined as any device that allows the user to place and polish facets onto a mineral specimen. Machines can range in sophistication from primitive jamb peg machines to highly refined, and highly expensive,… …
10Drill bit shank — The shank is the part of a drill bit grasped by the chuck of a drill. The cutting edges of the drill bit are at one end, and the shank is at the other. Different styles of shank/chuck combination deliver different performance, such as allowing… …
