stub length vs jobber length
Dutch translation: (extra) korte boren en standaard boren
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| 09:14 Jul 31, 2018 |
| English to Dutch translations [PRO] Tech/Engineering - Mechanics / Mech Engineering / Drills / boren | |||||||
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|  Selected response from: Lianne van de Ven United States Local time: 12:12 | ||||||
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| 3 +2 | (extra) korte boren en standaard boren |
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Answers
5 hrs confidence: 
peer agreement (net): +2
peer agreement (net): +2(extra) korte boren en standaard boren Explanation: Ik denk dat je hiernaar kunt verwijzen met kort of extra kort en standaard. Alles over de jobber bits (bit = de hele boor; jobber = 'doet de job'): http://ramproducts.com/everything-you-need-to-know-about-job... Extra korte boortjes: https://www.borenshop.com/metaalboren/metaalboor-blank-gesle... |
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3 hrs peer agreement (net): +1 |
| Reference: Refs Reference information: Misschien heb je iets aan de volgende links: https://www.pgb-europe.com/nl-be/overview/10804/metaalboren https://www.pgb-europe.com/en-gb/overview/10804/jobber-drill stub drills >> korte metaalboren (?) jobber drills >> metaalboren (?) -------------------------------------------------- Note added at 7 hrs (2018-07-31 16:58:01 GMT) -------------------------------------------------- Ik denk dat ik zou kiezen voor resp. 'medium/standaard uitvoering' (jobber length) en 'korte uitvoering' (stub length). Zie in dit verband ook DIN 338 en DIN 6539/1897. Het idee bij 'jobber length' is zo te zien in ieder geval dat de spiraallengte (nuttige lengte) 9-14x groter is dan de boordiameter (D). Bij 'stub length' zijn de spiraallengte (en de totale boorlengte) verhoudingsgewijs kleiner. The shortest standard-length drills (that is, lowest length-to-diameter ratio) are screw machine-length drills (sometimes abbreviated S/M). They are named for their use in screw machines. Their shorter flute length and shorter overall length compared to a standard jobber bit results in a more rigid drill bit, reducing deflection and breakage. They are rarely available in retail hardware stores or home centers. Jobber-length drills are the most commonly found type of drill. The length of the flutes is between 9 and 14 times the diameter of the drill, depending on the drill size. So a 1⁄2 in (12.7 mm) diameter drill will be able to drill a hole 4 1⁄2 in (114.3 mm) deep, since it is 9 times the diameter in length. A 1⁄8 in (3.2 mm) diameter drill can drill a hole 1 5⁄8 in (41.3 mm) deep, since it is 13 times the diameter in flute length. https://en.wikipedia.org/wiki/Drill_bit_sizes The length of a bit determines how deep a hole can be drilled, and also determines the stiffness of the bit and accuracy of the resultant hole. While longer bits can drill deeper holes, they are more flexible meaning that the holes they drill may have an inaccurate location or wander from the intended axis. Twist drill bits are available in standard lengths, referred to as Stub-length or Screw-Machine-length (short), the extremely common Jobber-length (medium), and Taper-length or Long-Series (long). https://en.wikipedia.org/wiki/Drill_bit |
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