| dbo:abstract
|
- Drill bits are the cutting tools of drilling machines. They can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors. In the U.S., fractional inch and gauge drill bit sizes are in common use. In nearly all other countries, metric drill bit sizes are most common, and all others are anachronisms or are reserved for dealing with designs from the US. The British Standards on replacing gauge size drill bits with metric sizes in the UK was first published in 1959. A comprehensive table for metric, fractional wire and tapping sizes can be found at the drill and tap size chart. (en)
- 鑽頭是一般鑽子或鑽挖機器所採用的，以切割出圓形的孔洞。鑽頭基本原理為使鑽頭切邊旋轉，切削工件，再由鑽槽進行排除鑽屑。它包含了機械、木工、採礦業、混凝土 水泥等不同用途的鑽頭。舉例說：機械用鑽頭，是在金屬為主的工件上鑽出各式各樣孔徑以及各種用途孔為主。 按其孔洞的大小，亦會用到不同大小的鑽頭：較大型的，其尺寸或可自由調整；至於為配合螺絲或管線的使用，各國或地區定有固定大小的標準，以方便工程的統一採購。在美國，當地一直都使用英制的尺寸標準，所以其鑽頭大小亦是以一英寸的不同分數來劃分；而在其他國家，鑽頭大小都以毫米為其尺寸標準。隨着國家的度量衡標準的轉變，其國家標準亦會作出相應的修定，舉例說英國的（BS）就於1959年從英制改成使用公制。 (zh)
|
| dbo:thumbnail
| |
| dbo:wikiPageID
| |
| dbo:wikiPageLength
|
- 23648 (xsd:nonNegativeInteger)
|
| dbo:wikiPageRevisionID
| |
| dbo:wikiPageWikiLink
| |
| dbp:wikiPageUsesTemplate
| |
| dcterms:subject
| |
| gold:hypernym
| |
| rdf:type
| |
| rdfs:comment
|
- 鑽頭是一般鑽子或鑽挖機器所採用的，以切割出圓形的孔洞。鑽頭基本原理為使鑽頭切邊旋轉，切削工件，再由鑽槽進行排除鑽屑。它包含了機械、木工、採礦業、混凝土 水泥等不同用途的鑽頭。舉例說：機械用鑽頭，是在金屬為主的工件上鑽出各式各樣孔徑以及各種用途孔為主。 按其孔洞的大小，亦會用到不同大小的鑽頭：較大型的，其尺寸或可自由調整；至於為配合螺絲或管線的使用，各國或地區定有固定大小的標準，以方便工程的統一採購。在美國，當地一直都使用英制的尺寸標準，所以其鑽頭大小亦是以一英寸的不同分數來劃分；而在其他國家，鑽頭大小都以毫米為其尺寸標準。隨着國家的度量衡標準的轉變，其國家標準亦會作出相應的修定，舉例說英國的（BS）就於1959年從英制改成使用公制。 (zh)
- Drill bits are the cutting tools of drilling machines. They can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors. In the U.S., fractional inch and gauge drill bit sizes are in common use. In nearly all other countries, metric drill bit sizes are most common, and all others are anachronisms or are reserved for dealing with designs from the US. The British Standards on replacing gauge size drill bits with metric sizes in the UK was first published in 1959. (en)
|
| rdfs:label
|
- Drill bit sizes (en)
- 鑽頭大小 (zh)
|
| rdfs:seeAlso
| |
| owl:sameAs
| |
| prov:wasDerivedFrom
| |
| foaf:depiction
| |
| foaf:isPrimaryTopicOf
| |
| is dbo:wikiPageRedirects
of | |
| is dbo:wikiPageWikiLink
of | |
| is rdfs:seeAlso
of | |
| is foaf:primaryTopic
of | |
