grinding off the edge
41Drill 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 …
42Grinds (skateboarding) — Grinds are a form of skateboarding trick where the skateboarder slides on the side or on the trucks. Grinds are performed on any object that may fit between the space between the wheels where the truck meets. There s about 30 45 skate truck… …
43List of snowboard tricks — Snowboard tricks are aerials or maneuvers performed on snowboards for fun, or in competitions. Most often, these maneuvers are performed on obstacles such as jumps, halfpipes, quarterpipes, hips, handrails, funboxes, or ledges, or on the surface… …
44Spirit rover — (MER A) Artist s concept of Rover on Mars Operator NASA Mission type Rover Launch date …
45Ometepe (archaeological site) — Ometepe Island is an important archaeological site, located in the Lake Nicaragua in the Republic of Nicaragua, administratively belongs to the Rivas Department. Its name derives from the Nahuatl words ome (two) and tepetl (mountain), meaning two …
46Playboating — is a discipline of whitewater kayaking or canoeing where the paddler performs various technical moves in one place (a playspot), as opposed to downriver whitewater canoeing or kayaking where the objective is to travel the length of a section of… …
47Diamond tool — A close up of the segment of a diamond saw blade A diamond tool is a cutting tool with diamond grains fixed on the functional parts of the tool via a bonding material or another method.[1] As diamond is a superhard material, diamond tools have… …
48dinosaur — /duy neuh sawr /, n. 1. any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals. 2. something that is… …
49Sharpening stone — Waterstone redirects here. For the British bookstore chain, see Waterstone s. An oil stone Sharpening stones, water stones or whetstones are used to grind and hone the edges of steel tools and implements. Examples of items that may be sharpened… …
50machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… …
