Patents for B23B 51 - Tools for drilling machines (12,490)
03/1987
03/05/1987DE3529603A1 Boring tool for quires of paper or the like
03/04/1987EP0211997A1 Undercutting tool
03/03/1987US4647052 Tool-holding device and tool support
02/1987
02/25/1987EP0211106A2 Drill with a plurality of lips
02/24/1987US4645389 Multiple-tooth drill bit
02/12/1987DE3545165A1 Multi-lip drill
02/10/1987US4642003 Rotary cutting tool of cemented carbide
02/10/1987US4642001 Spade drill with replaceable cutting-insert carrier
02/03/1987US4640373 Bore head for deep-hole boring
02/03/1987US4640371 Process and tool for boring cavity holes, more especially in concrete plaster or similar walls
01/1987
01/15/1987WO1987000100A1 Adjustable length chamfering tool
01/15/1987DE3515735C1 Boring head for a percussion boring device
01/13/1987US4635737 Undercutting drill
01/02/1987DE3522324A1 Device for machining workpieces
12/1986
12/30/1986US4632610 Annular hole cutter
12/30/1986EP0207025A2 Cutting tool
12/30/1986EP0206652A2 A method of making a blank of a drill bit
12/30/1986EP0107651B1 Drill bit for fiber reinforced plastics
12/16/1986US4628584 Method of removing fibers protruding into bores
12/09/1986US4627503 Multiple layer polycrystalline diamond compact
12/02/1986US4626152 Quick change tool retainer
12/02/1986US4626143 Spot facer and boring head having replaceable carbide cutters
11/1986
11/25/1986US4624608 Pilot pin-locking device in drilling machines
11/20/1986EP0202211A2 Drill
11/20/1986EP0202091A2 Tool holding devices for machine tools
11/18/1986US4623287 Drilling machine especially for drilling glass
11/18/1986CA1214055A1 Drill and a method of producing it
11/12/1986CA1213760A Drill
11/11/1986US4621957 Inverted cutter
11/04/1986US4620822 Flat bottom hole drill
11/04/1986CA1213452A1 Indexable insert drill
10/1986
10/21/1986US4617692 Tool for drilling and securing screw anchor to a wall
10/14/1986US4616965 Rotary cutting tool
10/14/1986US4616964 Carbide drill
10/08/1986CN85202254U Single edge rotary combined drill with center blade-inlaid
09/1986
09/30/1986CA1211928A1 Single bit reamer with improved precision
09/25/1986WO1986005426A1 Drill
09/24/1986EP0195265A1 Tool for undercutting bore holes
09/16/1986US4611516 Metal working cutting tool
09/10/1986EP0194245A2 Drill for generating of holes in a work piece
09/09/1986CA1210970A1 Balanced drill with center cutting action
08/1986
08/20/1986EP0191457A1 Counter-sinking tools
08/19/1986US4606680 Reamer core drill with cutting bits
08/13/1986EP0190182A1 Adaptor for use with a multi-jaw chuck
08/12/1986US4605347 High speed drill reamer
08/12/1986US4605345 Drilling apparatus with wall-covering protection
08/12/1986US4604917 Easy-out threaded fastener extractor
08/05/1986CA1208944A1 Drill chuck for percussion drilling
07/1986
07/30/1986CN85202578U High speed drilling-filing bit
07/16/1986EP0187647A2 Boring tool
07/15/1986US4600006 Cranial perforator
07/15/1986CA1207566A1 Drill and indexable carbide insert therefor
07/09/1986CN85106996A Method of and tool for boring, especially boring hole on wall of concrete, plaster or the like
07/08/1986US4599020 Deburring system
07/02/1986CA1206781A Annular hole cutter
06/1986
06/24/1986US4596499 Center-free drill
06/18/1986EP0184784A1 Process for the production of drilling tools
06/17/1986US4595322 Spade drill bit
06/17/1986US4595321 Plug cutter
06/10/1986US4594034 Multigroove drill bit with angled frontal ridges
06/10/1986US4594033 Boring tool for producing undercuts in holes
06/10/1986US4593467 Work piece holder and guard for a circular cutter
05/1986
05/27/1986US4591303 Drilling tool
05/27/1986US4591302 Countersink with disposable insert
05/27/1986US4591300 Deep-drilling tool
05/27/1986US4590929 Tools for orthopaedic surgery and the like
05/21/1986EP0181844A2 Drill and cutting insert therefor
05/21/1986EP0181841A2 Drill
05/20/1986US4589807 Hole production tool
05/20/1986US4589805 Boring and deburring head and boring and deburring tool capable of being fastened therein, and method for boring and deburring a workpiece
05/20/1986US4589310 Chuck and rotary tool to be used when making a hole in a workpiece
05/20/1986US4589178 Insertion tool
05/14/1986EP0181303A2 Tool in the form of a compound body and method of producing the same
05/13/1986US4588334 Adjustable clocking nose piece
05/13/1986US4587736 Creaser tool
05/13/1986CA1204307A1 Annular cutter
05/07/1986EP0180246A2 Cutting tool
05/07/1986EP0180243A2 Composite sintered material having sandwich structure
05/06/1986US4586858 Rotary cutting tool
05/06/1986US4586857 Hole cutter
04/1986
04/22/1986US4583888 Cemented carbide drill bit
04/22/1986CA1203403A1 Rotary drill bit
04/15/1986US4582458 Stepped drill construction
04/08/1986US4580934 For enlarging a previously drilled hole
04/08/1986US4580933 Cutting tool accessory
04/08/1986US4580932 Deburring tool
04/08/1986CA1202800A1 Pilot adaptor for flat wood boring bits
04/01/1986US4579486 Hole saw guide
03/1986
03/26/1986EP0175053A2 Conical counter sinker
03/12/1986EP0174089A2 Stepped drill construction
03/11/1986US4575294 Anchoring bolt
03/04/1986US4573841 Method of and apparatus for the finish shaping of profiled cylindrical holes
03/04/1986US4573839 Mounting chuck for a drill having reversible tools therein
03/04/1986US4573838 Hole cutter
03/04/1986US4573381 Boring device
02/1986
02/26/1986EP0172307A2 Improvements relating to cutters
02/25/1986US4572714 Router bit
02/19/1986EP0172148A2 Drill
02/19/1986EP0171521A2 Drilling device for holes having undercuttings at different positions
02/12/1986EP0171358A2 Drilling tool for hand drills