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AT171827B - Rock drill bits or drill bits with hard metal cutting edges for compressed air tools or electric impact tools with two cutting edges arranged in a cross shape - Google Patents

Rock drill bits or drill bits with hard metal cutting edges for compressed air tools or electric impact tools with two cutting edges arranged in a cross shape

Info

Publication number
AT171827B
AT171827B AT171827DA AT171827B AT 171827 B AT171827 B AT 171827B AT 171827D A AT171827D A AT 171827DA AT 171827 B AT171827 B AT 171827B
Authority
AT
Austria
Prior art keywords
cutting edges
drill bits
tools
compressed air
cross shape
Prior art date
Application number
Other languages
German (de)
Original Assignee
Boehler & Co Ag Geb
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boehler & Co Ag Geb filed Critical Boehler & Co Ag Geb
Application granted granted Critical
Publication of AT171827B publication Critical patent/AT171827B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts

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)
AT171827D 1950-11-15 1950-11-15 Rock drill bits or drill bits with hard metal cutting edges for compressed air tools or electric impact tools with two cutting edges arranged in a cross shape AT171827B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT171827T 1950-11-15

Publications (1)

Publication Number Publication Date
AT171827B true AT171827B (en) 1952-07-10

Family

ID=3656492

Family Applications (1)

Application Number Title Priority Date Filing Date
AT171827D AT171827B (en) 1950-11-15 1950-11-15 Rock drill bits or drill bits with hard metal cutting edges for compressed air tools or electric impact tools with two cutting edges arranged in a cross shape

Country Status (1)

Country Link
AT (1) AT171827B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002264B (en) * 1952-09-29 1957-02-14 Josef Dionisotti Rock drill bit with detachably inserted cutting tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002264B (en) * 1952-09-29 1957-02-14 Josef Dionisotti Rock drill bit with detachably inserted cutting tools

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