BE513754A - - Google Patents

Info

Publication number
BE513754A
BE513754A BE513754DA BE513754A BE 513754 A BE513754 A BE 513754A BE 513754D A BE513754D A BE 513754DA BE 513754 A BE513754 A BE 513754A
Authority
BE
Belgium
Prior art keywords
bit
diameter
cutting
edges
drilling
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE513754A publication Critical patent/BE513754A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/36Percussion drill bits
    • E21B10/40Percussion drill bits with leading portion

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
BE513754D BE513754A (de)

Publications (1)

Publication Number Publication Date
BE513754A true BE513754A (de)

Family

ID=151776

Family Applications (1)

Application Number Title Priority Date Filing Date
BE513754D BE513754A (de)

Country Status (1)

Country Link
BE (1) BE513754A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058061A3 (de) * 1981-02-07 1982-09-01 DRILLING & SERVICE U.K. LIMITED Erdbohrwerkzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058061A3 (de) * 1981-02-07 1982-09-01 DRILLING & SERVICE U.K. LIMITED Erdbohrwerkzeug

Similar Documents

Publication Publication Date Title
JP3071466B2 (ja) ツイストドリル
BE1010801A3 (fr) Outil de forage et/ou de carottage.
JP3609366B2 (ja) 盛上げタップ
JP5642215B2 (ja) 螺旋状溝タップ
FR2955792A1 (fr) Procede de fabrication d'un foret, et foret
US20090317202A1 (en) Strong high performance twist drill
FR2696963A1 (fr) Foret brunisseur.
FR2874342A1 (fr) Foret en carbure permettant de forer un trou avec un degre reduit d'ecrouissage
EP2457678A1 (de) Monoblock-Schneidewerkzeug aus zwei Materialien
JP2010105119A (ja) ドリルリーマ
US9839984B2 (en) Method of making a cutting tap with a correction grind
BE513754A (de)
EP2485675A1 (de) Kanalaufweiter mit mehreren spiralförmigen schneidlippen
CN109290592A (zh) 一种弹性轴承座端面深窄环槽加工用刀具及加工方法
JP2009018382A (ja) ドリル
CN211939391U (zh) 一种螺旋槽丝锥
CN210147174U (zh) 一种控屑丝锥
CN110625165A (zh) 钻头
FR3094251A1 (fr) Outil rotatif de coupe, tel qu’un foret ou un alésoir
CN222608103U (zh) 塔型阶梯钻头
CN203109357U (zh) 枪铰刀
CN219274581U (zh) 一种硬质合金变芯扩槽深孔型钻头
CN206567577U (zh) 一种减少毛刺的钻通孔刀具
EP4431858A1 (de) Choke für gewehrlauf und verfahren zur modifizierung eines chokes
US20220203469A1 (en) Hybrid threading tool with cutting portion and rolling portion