Patents
Sitemap › B23 - Machine tools; Metal-working not otherwise provided for › B23B - Turning; Boring › B23B 51 - Tools for drilling machines
Patents for B23B 51 - Tools for drilling machines (12,490)
04/1981
04/22/1981EP0027174A1 Cutting tool
04/14/1981US4261673 Magnetic base drill
04/14/1981US4261093 Tool and method for gaining legitimate entry into a locked enclosure
04/01/1981EP0026082A1 Drill
04/01/1981EP0026022A1 Drilling and tapping machine
03/1981
03/31/1981US4258808 Rock drill
03/11/1981EP0024741A2 Boring device for a branching valve
03/10/1981CA1097104A1 Drills
02/1981
02/24/1981US4252480 Throw away insert and end mills
02/03/1981US4248555 Drill assembly
02/03/1981CA1094849A1 Indexable insert drill
01/1981
01/20/1981CA1094049A1 Drill bit for rock drilling
12/1980
12/30/1980US4242018 Boring tool
12/16/1980CA1091481A1 Boring tool
12/16/1980CA1091480A1 Deep drilling tool
11/1980
11/04/1980US4231692 Drill comprised of hard metal for drilling contact holes in circuit boards and the like
10/1980
10/28/1980US4230429 Boring tool for making borings in solid metal material of workpieces
10/07/1980CA1086995A1 Drill having spiral cutting edges
09/1980
09/30/1980US4225275 Drill bit
09/30/1980US4225274 Drilling tool
09/23/1980CA1086102A1 High speed coolant feeding gun drill and cutting head section therefor
09/23/1980CA1086101A1 Portable core drill cutter for hard brittle sheets
09/16/1980US4222690 Drill having cutting edges with the greatest curvature at the central portion thereof
09/03/1980EP0015248A1 Mounting device for rotary-cutter tools
09/02/1980US4220429 Indexable insert drill
08/1980
08/20/1980EP0014423A1 Boring head
08/19/1980US4218162 Drilling bit
08/05/1980US4215957 Cutting insert for chipforming machine
07/1980
07/15/1980US4212569 Tubular drill tool
07/01/1980US4210406 Drill with replaceable inserts
06/1980
06/25/1980EP0012233A1 Perforating tool for tiles or the like
06/24/1980US4209275 Twist drill
06/24/1980US4209272 Apparatus and method of forming holes in plate glass
05/1980
05/27/1980US4204783 Machine for cutting holes with annular cutters
05/20/1980US4203692 Self-centering hole saw adapter
05/20/1980CA1077921A1 Device for exposing worn carbide tips in drill bits
05/20/1980CA1077920A1 Spade drill
05/20/1980CA1077807A1 Hole saw assembly
05/13/1980US4202420 Rock drill with hard metal drilling head
05/06/1980CA1076849A1 Timed intermittent air propelled liquid coolant system for machine tools
04/1980
04/22/1980US4199060 Lock installation kit
04/15/1980CA1075504A1 Gun drill
04/15/1980CA1075503A1 Arbor for annular hole cutter
04/08/1980US4197042 Countersinking tool
03/1980
03/25/1980US4194862 Indexable insert drill
03/25/1980US4194322 Constant force sheet glass cutting drill assembly
03/19/1980EP0008622A1 Drilling tool for making undercuttings
03/18/1980US4193721 Arbor for annular hole cutter
02/1980
02/26/1980US4190386 Method of producing holes free of accretions in circuit boards made of plastic
02/26/1980CA1072373A2 Insert-type drill and insert therefor
02/19/1980US4189266 Rotary drill bit for hand-held power drills
02/19/1980CA1071906A1 Rotary drill
02/12/1980US4188162 Indexable insert drill
02/06/1980EP0007512A1 Drill with indexable inserts
02/05/1980US4187045 Drilling assembly and a drilling tool thereof
01/1980
01/29/1980CA1070530A1 Apparatus and method for precision over-boring an arcuate, variable diameter bore
01/22/1980US4184794 Device for machining the internal wall of a cylinder
01/22/1980CA1070147A1 Insert-type drill and insert therefor
01/22/1980CA1070098A1 End mill tool holder body and tool
01/09/1980EP0006417A1 Twist drill with inserted cemented carbide tip
01/08/1980CA1069428A1 Compound angle cutting edge and method of using same
12/1979
12/11/1979US4178115 Valve seat ring installation tool
12/11/1979US4177659 Rotatable piercing tools for forming holes surrounded each by a boss in metal plates or the wall of metal tubes
09/1979
09/11/1979US4167363 Counterbore cutting tool
09/11/1979CA1062241A1 Fluid operated undercutter
09/05/1979EP0003915A1 Abrasive bodies
09/05/1979EP0003816A1 Rock drilling tool
08/1979
08/21/1979US4165201 Deburring tool for deburring bores
08/21/1979US4165200 Drilling and deburring apparatus
07/1979
07/31/1979CA1059346A1 Combination hole saw arbor
07/10/1979US4160616 Drill containing minimum cutting material
06/1979
06/19/1979CA1056624A1 Drilling assembly
06/13/1979EP0002291A2 Hydraulic core drill apparatus
05/1979
05/16/1979EP0001923A1 An improved drilling bit
05/15/1979US4154311 Drilling assembly
05/08/1979US4153121 Fluid operated undercutter
04/1979
04/17/1979US4149821 Radially balanced rotary drill
04/10/1979US4148593 Hole saw assembly
04/03/1979US4147464 Hole cutter for hard materials such as ceramic tile
04/03/1979US4147463 Adjustable deburring tool
03/1979
03/27/1979CA1051216A1 Method and arrangement for anchoring an object to a support structure
03/13/1979US4143723 Carbide tipped drill bit for boring holes in concrete and steel
03/06/1979CA1049901A1 Heavy duty hole saw and arbor assembly
02/1979
02/20/1979US4140432 Deburring tool
01/1979
01/30/1979US4137002 High speed coolant feeding gun drill and cutting head section therefor
01/23/1979US4135847 Composite drill for drilling circuit boards
01/16/1979US4134704 Tapered hole cutter
01/09/1979US4133399 Boring device
01/09/1979US4133089 Combined precision boring and burnishing tool
12/1978
12/26/1978US4131384 Arbor for annular hole cutter
12/26/1978US4131383 Insert type drill and insert therefor
12/12/1978US4129401 Hole-cutting tool with a free central portion and ejector apparatus for the core of metal formed by the tool
12/12/1978US4129400 Trepanning tool
11/1978
11/28/1978US4127355 Wood bit
11/07/1978US4124328 Indexable insert drill
10/1978
10/17/1978US4120601 Spade drill
10/03/1978CA1039540A1 Drill bit with deburring device
09/1978
09/26/1978US4116580 All cutting edge drill
09/26/1978US4116579 End mill tool holder body and tool
09/26/1978US4116578 Rotary tool for making holes
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