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| Kettle
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Equipment used for heating bitumen to a flowing consistency. |
| Key
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(1) Groove in the top of a footing. (2) Cross section piece of metal, square or rectangular shaped, which secures interlocking parts by fitting into a groove or shaft and may be used to fasten a wheel or pulley to a shaft. |
| Key switch
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Electrical switch that can only be activated with use of the appropriate key to guard against unauthorized use. The toggle is removed from a single-pole switch and replaced with a key slot. |
| Keyed chuck
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A keyed chuck is a geared drill chuck that is hand-opened and closed with a small steel chuck key. The most reliable and easiest to use is a 3-jaw chuck, which is an all-purpose self-centering chuck that can hold any size round bit shank. |
| Keyhole saw
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Moderate or coarse toothed hand saw with a pointed blade which is able to start a cut without cutting from the edge of a piece of material but uses a hole that has been drilled. |
| Keyless chuck
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A keyless chuck is a drill's chuck which opens and closes around a bit shank without the use of a chuck key. Keyless chucks come in three types. |
| Keystone
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Angular block, in a header or mantle, centered over a door or window or at the top of a masonry arch. |
| Keyway
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(1) The keyway in a lock that is worked by a flat key. (2) Groove or slot cut in a shaft to hold the key. (3) Groove made in one concrete our that interlocks another concrete structure, possibly poured at an earlier time, such as interlocking a wall to a footing. (4) Groove into which a square or rectangular key is inserted to lock two members together. |
| Kick hole
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A defect frequently found in perimeter flashings arising from being stepped on or kicked. A small fracture of the base flashing in the area of the cant. |
| Kick plate
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A protective plate that is attached to the bottom of a door or other location likely to be damaged or worm from contact. |
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