drill frame
21Butt joint — For the geometry in welding, see Butt joint (welding). A butt joint is a joinery technique in which two members are joined by simply butting them together. The butt joint is the simplest joint to make since it merely involves cutting the members… …
22Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer (   …
23List of Tengen Toppa Gurren Lagann mecha — nihongo|Gunmen|ガンメン|Ganmen are the main type of mecha used in the anime series Tengen Toppa Gurren Lagann .The name itself means face/facade (顔面 ガンメン Face Surface), and can be broken down into gun and man mdash; unsurprisingly, the mecha… …
24List of Gurren Lagann mecha — Gunmen (ガンメン, Ganmen?) are the main type of mecha used in the anime series Tengen Toppa Gurren Lagann. The name itself means face/facade (顔面 ガンメン Face Surface); unsurprisingly, the mecha themselves are centered around faces and as such are very… …
25List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …
26Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …
27Plough — Plow redirects here. For the Canadian soldier, see Edward Chester Plow. Plowman redirects here. For the surname, see Plowman (surname). Furrow redirects here. For other uses, see Furrow (disambiguation). For other uses, see Plough… …
28Chisel — This article is about the tool. For the American band, see Chisel (band). For the album by Australian band Cold Chisel, see Chisel (album). Steel woodworking chisel …
29Titanium — This article is about the chemical element. For other uses, see Titanium (disambiguation). scandium ← titanium → vanadium …
30Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
