| Patents for B23B 51 - Tools for drilling machines (12,490) |
|---|
| 04/29/1992 | EP0482982A1 Device for drilling with improved chip removal |
| 04/28/1992 | US5108235 Hole saw arbor |
| 04/21/1992 | US5105882 Lateral cutter device |
| 04/21/1992 | CA1298994C Self-centering drill bit with pilot tip |
| 04/16/1992 | WO1992005904A1 Hard material clad with diamond, throwaway chip, and method of making said material and chip |
| 04/15/1992 | EP0480263A1 Core drill bit |
| 04/08/1992 | EP0479335A2 Drill |
| 04/08/1992 | EP0479140A1 Apparatus for grooving a cylindrical wall of a piece having a blind hole |
| 04/07/1992 | CA1298495C One-piece rotary material removing tool of sintered hard metal |
| 04/07/1992 | CA1298494C Method and apparatus for making an undercut drilled hole in a fixed base |
| 04/01/1992 | CN2100270U Drill with directly cooled cutting edge |
| 03/31/1992 | CA1298104C Process for drilling deep holes in a work piece |
| 03/24/1992 | US5098234 Hollow drill for fabric and the like |
| 03/17/1992 | US5096344 Drill bit having bulb-like shank enlargements to reduce jamming |
| 03/17/1992 | US5096341 Hole saw and drive |
| 03/15/1992 | CA2025445A1 Fixing system |
| 03/12/1992 | DE4028830A1 Drilling and cutting tool - is of variable dia. and is designed for working in concrete and similar materials |
| 03/11/1992 | EP0474591A2 Subcalibre shaft with central drillholder |
| 03/11/1992 | EP0474092A2 Using thermally-stable diamond or CBN compacts as tips for rotary drills |
| 03/11/1992 | CN1015786B Device on powered handtools for transmitting torque |
| 03/10/1992 | US5094573 Multidirectional cutting tool |
| 03/10/1992 | US5094572 Spade drill for hard material |
| 03/10/1992 | US5094571 Drill |
| 03/10/1992 | CA1296930C Single-lip drilling tool |
| 03/05/1992 | WO1992003244A1 Countersink |
| 03/05/1992 | WO1992003243A1 Drill |
| 03/05/1992 | DE4027287A1 Producing wall recesses for installation of electrical sockets |
| 03/05/1992 | CA2049663A1 Using thermally-stable diamond or cbn compacts as tips for rotary drills |
| 03/04/1992 | EP0473035A2 Device for production of cavities in walls |
| 03/03/1992 | US5092718 Drill with replaceable cutting inserts |
| 03/03/1992 | US5092717 Device for making a drilled hole with an undercut |
| 02/25/1992 | US5090848 Device for producing drilled holes with undercut |
| 02/20/1992 | WO1992002327A1 Chamfer cutter |
| 02/19/1992 | CN1058743A Drill bit for producing cylindrical drilled holes |
| 02/18/1992 | US5088863 Twist drill |
| 02/18/1992 | US5088553 Lateral cutter device |
| 02/12/1992 | EP0470354A1 Drill to make cylindrical holes |
| 02/12/1992 | CN2095724U Twist drill with non-symmetry chip flute |
| 02/07/1992 | CA2048412A1 Drill bit having bulb-like shank enlargements to reduce jamming |
| 02/04/1992 | US5085026 Conical seismic anchor and drill bit for use with unreinforced masonry structures |
| 01/22/1992 | EP0467582A2 Improvements in drills |
| 01/22/1992 | EP0467372A2 Valve seat bushing machining apparatus |
| 01/22/1992 | EP0467114A1 CVD diamond coated twist drills |
| 01/22/1992 | EP0466702A1 Coupling for drilling machine with dust extractor. |
| 01/21/1992 | US5082403 Core-drilling apparatus with mandrel driver-ejector |
| 01/21/1992 | US5082070 Hollow drill bit |
| 01/19/1992 | CA2042209A1 Cvd diamond coated twist drills |
| 01/14/1992 | US5079843 Hole cutter for ostomy adhesive wafers |
| 01/09/1992 | DE4019427A1 Thread cutting tool for use with machine tool - has axial hole and longitudinal grooves for flow of cooling medium |
| 01/07/1992 | US5078605 Device for the treatment of a bone, particularly a jaw bone, and/or tooth |
| 01/07/1992 | US5078555 Tooling to form a countersink or counterbore |
| 01/07/1992 | US5078554 Drill |
| 01/07/1992 | CA1293872C Hole saw plug ejector |
| 01/02/1992 | DE4019428A1 Tool-bit for machine tool - has cooling medium supplied to cutting edges via flat on tool body |
| 01/01/1992 | CN2091734U Wave-type hard alloy drill without cross lip |
| 12/31/1991 | US5076741 Plug ejecting holesaw |
| 12/31/1991 | US5076374 Drilling device with an impact-rotation tool |
| 12/31/1991 | US5076371 Tool for use in a hand power device |
| 12/24/1991 | US5074722 Hole cutter |
| 12/24/1991 | US5074721 Metal cutting blade and process for manufacture thereof |
| 12/24/1991 | US5074025 Threaded shank drill assembly |
| 12/17/1991 | CA1293114C Rotary tool for outer working of rotation-symmetrical workpieces |
| 12/12/1991 | WO1991018700A1 Drilling tool |
| 12/11/1991 | EP0460237A1 Throw-away drill |
| 12/10/1991 | US5071295 Ring-form |
| 12/10/1991 | US5071294 Burnishing drill |
| 12/10/1991 | US5071292 Cutting insert for a milling cutting tool |
| 12/03/1991 | US5069584 Hollow drilling tool |
| 11/27/1991 | EP0458047A1 Milling cutter |
| 11/27/1991 | CN2089378U Double-fastening drill chuck |
| 11/21/1991 | DE4015749A1 Undercutting tool for holes in concrete - involves cutting edge which is pressed against wall of blind bore |
| 11/19/1991 | US5066175 Cutting tool assembly |
| 11/19/1991 | US5066174 Cartridge case flash hole finishing tool |
| 11/19/1991 | US5066172 Countersink tool assembly |
| 11/19/1991 | US5065647 Bit for drilling cast iron |
| 11/19/1991 | US5065517 Circle cutter |
| 11/14/1991 | DE4014812A1 Facade plate with fixture arrangement - is attached by screwed retainers to wall |
| 11/12/1991 | US5064320 Controlled depth cartridge case camfering tool |
| 11/06/1991 | EP0455420A2 Hole saw and mandrel assembly |
| 11/06/1991 | EP0454950A2 Device for making holes with intercutting |
| 11/05/1991 | US5062748 Shank structure for annular hole cutter |
| 10/30/1991 | EP0454114A1 Drill of diamond-coated sintered body |
| 10/30/1991 | EP0290520B1 Twist drill |
| 10/29/1991 | US5061126 Hole saw and mandrel assembly |
| 10/24/1991 | DE4012772A1 Hammer drill bit - has cruciform cutters with notches in two opposite ones |
| 10/17/1991 | DE4012067A1 Combined drill and chamfering tool - has chamfering bit secured by screw passing through hole with inclined chamfer to give wedging action |
| 10/15/1991 | US5056967 Spotweld removal tool |
| 10/09/1991 | EP0450026A1 Twist drill |
| 10/09/1991 | CN1014216B Method and apparatus for thread mill drilling |
| 10/08/1991 | US5054973 Tool bit with axially extending grooves in insertion end |
| 10/02/1991 | DE4010075A1 Combined drilling, milling, threading and chamfering tool - has reduced section nearest shank with chamfer cutting edges at each end |
| 10/01/1991 | US5052864 Counterbore milling cutter |
| 10/01/1991 | US5052863 Cutting insert for a milling cutting tool |
| 09/25/1991 | EP0334900B1 Undercutting drill |
| 09/19/1991 | DE4107793A1 Drill for producing small back-tapered blind holes - has longitudinal tapered slot with sliding pin allowing tool bit to be expanded in hole |
| 09/19/1991 | DE4008533A1 Deburring tool with tilting blade - has bar spring at arrester, engaging curved recess in blade outer periphery |
| 09/19/1991 | DE4008350A1 Internally or externally machining tool - has shank, multiple stages and locking system and is particularly suitable for machining cylinders |
| 09/18/1991 | EP0446767A1 Deburning tool with pivotable cutting blade |
| 09/17/1991 | US5049011 Rotary boring tool with indexable cutter chips |
| 09/17/1991 | US5049010 Metal cutting tool |