roller-bit drilling
212010 Copiapó mining accident — Copiapó mining accident redirects here. For the 2006 accident in the Carola Agustina mine, see 2006 Copiapó mining accident. 2010 Copiapó mining accident Rescue efforts at San José Mine near Copiapó, Chile on 10 August 2010 Date …
22Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
23Punch (tool) — For punches used in punch presses, see Punching. A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Punches are used to drive objects, such as nails, or to form an… …
24Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… …
25Milling 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 …
26Grinding wheel — Grinding wheels A grinding wheel is an expendab …
27Four-slide — A four slide machine The same four slide machine from another angle A fou …
28Daxcad — CADD and CAD redirect here. For other uses, see CADD (disambiguation) and CAD (disambiguation). DAXCAD (CAD) DaxCAD is a 2D Computer Aided Drawing software application written in the early 1980s by Practical Technology Ltd. Contents 1… …
29Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
30Balance board — A balance board is a device used for recreation, athletic training, brain development, therapy, musical training and other kinds of personal development. It is a lever, similar to a see saw, that the user usually stands on, usually with the left… …
