vacuum-breaker line
81Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
82Pencil — This article is about the handwriting instrument. For other uses, see Pencil (disambiguation). HB graphite pencils A pencil is a …
83Chisel — 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 …
84Chainsaw — For other uses, see Chainsaw (disambiguation). An arborist using a chainsaw to fell a eucalyptus tree A chainsaw (or chain saw) is a portable mechanical saw, powered by electricity, compressed air, hydraulic power, or most common …
85Spade — For other uses, see Spade (disambiguation). small spade for clay soil; the other one for sandy soil and loamy soil A spade is a tool designed primarily for the purpose of digging or removing earth.[1] Early spades were made of riven wood. After… …
86Drill 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 …
87Tape measure — plastic tape measure (metric) Self retracting tape measure (imperial) …
88Combination square — with standard head A Combination Square consisting of the rul …
89Architect's scale — A triangular architect s scale, made of brass An architect s scale is a specialized ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and orthographic projections. Because the scale of such… …
90British Rail Class 80 — Infobox Locomotive name = British Rail Class 80 powertype = Electric caption = roadnumber = E1000; E2001 from 1959 builder = Metropolitan Vickers builddate = 1951; rebuilt 1958 gauge = RailGauge|ussg|lk=on|al=on electricsystem = 25 kV AC… …
