- screw-head counterbore
- • зенкер за изработване на глава на винт
English-Bulgarian polytechnical dictionary . 2013.
screw-head counterbore
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Counterbore — Coun ter*bore ( b?r ), n. 1. A flat bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head. [1913 Webster] 2. A kind of pin drill with the cutting edge or edges normal to the… … The Collaborative International Dictionary of English
counterbore — counterborer, n. /kown teuhr bawr , bohr ; kown teuhr bawr , bohr /, n., v., counterbored, counterboring. n. 1. a tool for enlarging a drilled hole for a portion of its length, as to permit sinking a screw head. 2. the portion of the hole so… … Universalium
Counterbore — A counterbore in a metal plate A counterbore can refer to a cylindrical flat bottomed hole, which enlarges another hole, or the tool used to create that feature. A spot face is a very shallow counterbore. A counterbore hole is used when a… … Wikipedia
Butt 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… … Wikipedia
Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… … Wikipedia
Wrench — For other uses, see Wrench (disambiguation). A set of chrome vanadium metric wrenches, open at one end, box/ring at the other. This type is commonly known as a combination wrench. A wrench or spanner is a tool used to provide grip and mechanical… … Wikipedia
Drill 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 … Wikipedia
Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer ( … Wikipedia
Milling 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… … Wikipedia
Caliper — For other uses, see Caliper (disambiguation). A vernier caliper … Wikipedia
Miter saw — A miter saw (also spelled mitre) is a saw used to make accurate crosscuts and miters in a workpiece. Contents 1 Manual miter saw 2 Power miter saw 2.1 Types 2.2 F … Wikipedia
