Class / Patent application number | Description | Number of patent applications / Date published |
408226000 | Including detailed shank | 32 |
20080206006 | Interchangeable Rotary Tool Bit for a Handheld Power Drill - The invention relates to an exchangeable rotary tool for a hand-held machine tool with a drill and/or hammer function, especially for a hammer drill. Said rotary tool comprises an insertable shank to be accommodated in a tool holder of the hand-held machine tool, said shank having at least two driving fins extending along its longitudinal extent for rotational engagement. The driving fins ( | 08-28-2008 |
20080260481 | Cutter holder - A lock body in a locked state is inserted radially inward of an outer surface. A stopper body in a contact state holds the lock body in an unlocked state. The stopper body in a non-contact state is retracted from the lock body. A pressing body is switchable between a standby state and a retracted state. The pressing body in the standby state selectively contacts a central shaft when an insertion portion is inserted in a support cylinder. The pressing body in the retracted state is retracted from the stopper body. An urging member urges the pressing body into the standby state, and urges the stopper body into the contact state. The urging member detachably engages the pressing body to the stopper body. Thus, the structure of the cutter holder is simple. | 10-23-2008 |
20080286061 | Adaptor shank for SDS format pneumatic hammer/ drill gun - An adaptor shank for SDS format pneumatic hammer/drill guns, the adaptor shank having a drill bit receiving end with drill bit locking means and an SDS format end for locking engagement with SDS format pneumatic hammer/drill gun, thereby allowing the drill bit alone to be discarded and replaced upon wear or breakage. | 11-20-2008 |
20080298917 | Disposable Cutter - A disposable cutter includes a multi-side body including a top surface, a bottom, and a plurality of sides. A stepped hole is defined through the body and a bolt extends through the stepped hole to fix the disposable cutter to a shank. Each of the sides is inclined an angle relative to a vertical line. A recessed area is defined in the top surface and at least one inclined surface is connected between the top surface and the recessed area. A safety edge is defined between the top surface and the side connected with the top surface. At least one inclined surface is directly connected with a cutting edge. The cutting edge and the safety edge are located on two sides of a line passing through a center of the stepped hole. The safety edge contacts an inner periphery of the hole so as to provide a support to the disposable cutter. | 12-04-2008 |
20090047084 | HELICAL MULTILEVEL CUTTING TOOL - A helical multilevel cutting tool has high heat emission efficiency, great strength and excellent durability, and can be positioned easily during drilling operation. The cutting tool includes a cutter shank and a cutter head which are integrally formed, wherein the cutter head is provided with several helical pieces integrally, each helical piece has a cutting blade thereon, a heat emission platform is formed along the cutting blade, a second cutting blade which faces forwardly as viewed in the direction of the cutting operation is formed in front of the heat emission platform, and a cutting blade outer surface is formed between the heat emission platform front surface and the second cutting blade. An outer front cutting blade is formed on the top surface of the cutter head at a position where the blade meets the heat emission platform front surface, and a front cutting blade is formed between the second cutting blade and the center of the cutter head top surface. | 02-19-2009 |
20090080990 | Power and/or Signal Paths for a Machine Tool Accessory - A tool shank ( | 03-26-2009 |
20090169318 | CUTTING TOOL ASSEMBLY WITH AN ECCENTRIC DRIVE MEMBER - A cutting tool assembly having a tool holder and a cutting tool. The cutting tool has a shank that is matingly received within an axial bore in the lower end of the tool holder. The shank includes an eccentrically-shaped driver portion. The tool holder's axial bore includes an enlarged eccentrically-shaped drive opening which is complementary in shape to, but slightly larger than, the driver portion. When the shank is inserted into the axial bore, the driver portion and drive opening are aligned allowing the cutting tool to be partially rotated relative to the tool holder. This partial rotation abuts a portion of the eccentric driver portion against the drive opening wall to provide rigid support of the cutting tool against further rotation as the tool assembly cuts. A cammed fastener releasably interlocks the partially rotated cutting tool within the tool holder. | 07-02-2009 |
20090304470 | Deburring Tool and Cutting Insert - An insert for a deburring tool is used to machine openings of bores that are formed in metal work pieces. In an exemplary embodiment, the insert has an inward portion, a central portion connected to the inward portion, and an outward portion connected to the central portion. The central portion has a dovetail-shaped retaining feature that attaches the insert to the deburring tool. | 12-10-2009 |
20090317201 | Drill of hexagonal cylinder - The present invention relates to a drill of hexagonal cylinder. In a drill of diameter range 5 mm to 13 mm as using to make a hole on a metal, wood, or etc., a drill edge part in which is located at the bottom of the drill as formed a shape of screw to be able to make a hole the metal or wood, and a bit part in which is located at the top of the drill edge part as formed a shape of the teeth of a comb in the surface of a hexagonal cylinder to be able to separate and combine the drill in a drill tight. | 12-24-2009 |
20100092258 | Tool for machining workpieces - The present invention relates to a tool for machining workpieces, having a shank and a cutting part, wherein the cutting part has a cutting edge section that defines the nominal diameter of the tool, or an insert seat for a cutting insert, the seat having a cutting edge section that defines the nominal diameter of the tool, and wherein the tool has a rotational axis about which the tool rotates in the functionally mounted state. In order to provide a tool having one or more cutting edges, which enables the simple measurement of the nominal diameter, the invention proposes that the tool has at least one axially extending section, which is disposed in the axial direction outside of the cutting edge section defining the nominal diameter, and within which at a plane perpendicular to the rotational axis at least two circumferential sections are provided, which are disposed diametrically opposed of each other in relation to the rotational axis such that a reference diameter is formed, wherein the reference diameter is equal to the nominal diameter of the tool. | 04-15-2010 |
20100189523 | DRILLING TOOL - In a drilling tool including: a shank located at a tip side of a tool main body; and a bit located at a tip side of the shank, the shank and the bit (connection body) are connected to each other via screws, and a guide part for center alignment for aligning the centers of the shank and the bit is formed in the vicinity of screw portions of the shank and the bit. | 07-29-2010 |
20100322731 | ROTATABLE TOOL FOR CHIP REMOVING MACHINING AS WELL AS A LOOSE TOP THEREFOR - A rotatable tool for chip removing machining, including a basic body having front and rear ends between which a first center axis (C | 12-23-2010 |
20110013999 | DRILL - A drill is disclosed. The drill includes a drill head made of hard metal and a shank made of steel to which the underside of the drill head is fastened integrally. The underside is curved inwardly in a cone-shaped manner. | 01-20-2011 |
20110097170 | Drill Bit Extractor - An extractor for stuck drill bits. The extractor has an elongated main body with a bore at one end, the bore sized and shaped to fit over the shank of a drill bit. The drill bit shank has a cross section shape with a non-circular feature, such as a slot, a square, triangle, etc. The bore has a cooperative shape, and when engaged on the shank of the drill bit permits transfer of torque between the extractor and the drill bit. The extractor has a torque engaging surface, such as a hexagonal surface, on which a torque device such as a wrench can be engaged, and reverse torque thereby applied to extract a stuck drill bit. | 04-28-2011 |
20110182684 | MICRO DRILL AND METHOD OF FABRICATING THE SAME - A method of fabricating a micro drill, which includes a drill part for machining a hole and a shank part fixed to a motor, the drill part and the shank part being made of different materials. The method includes the steps of forming a drill part-forming powder compact having a recess in one end thereof, and forming a shank part-forming powder compact having a protrusion, the protrusion intended to be fitted into the recess of the drill part-forming powder compact, forming an assembly of the drill part-forming powder compact and the shank part-forming powder compact, with the protrusion fitted into the recess, and simultaneously sintering the assembly of the drill part-forming powder compact and the shank part-forming powder compact. | 07-28-2011 |
20110236145 | ROTATABLE TOOL FOR CHIP REMOVING MACHINING AS WELL AS A LOOSE TOP AND A BASIC BODY THEREFOR - A rotatable tool for chip removing machining, including a basic body having front and rear ends between which there extends a first geometrical center axis (C | 09-29-2011 |
20120003057 | WRENCHABLE DRILL BIT - A drill bit includes a shank at a first end of the drill bit, a boring head at a second end of the drill bit opposite the first end, and a wrenching section between the shank and the boring head. The wrenching section has a substantially different cross-section than any portion of the shank or the boring head. The wrenching section includes at least one pair of flat surfaces that are parallel to one another. In some embodiments, the wrenching section has a square or hexagonal cross section. A drill motor grips the shank for boring a hole in a workpiece. In some embodiments, the shank is cylindrical or splined, or is configured as an SDS shank, an SDS-plus shank, an SDS-Top shank, an SDS-max shank, or a Morse taper shank. A wrench is applied to the wrenching section to free the drill bit from the workpiece if jammed. | 01-05-2012 |
20120009034 | DRILLING TOOL - The invention relates to a drilling tool ( | 01-12-2012 |
20120134761 | SPIRAL FLUTED TAP AND METHOD FOR MANUFACTURING THE SAME - A spiral fluted tap is provided which includes a threaded portion having an external thread corresponding to an internal thread to be cut and a cutting edge formed along a spiral flute formed to divide the external thread, and being screwed into a prepared hole that is provided on a workpiece to cut an internal thread by the cutting edge on an inner circumferential surface of the prepared hole with discharging chips toward a shank via the spiral flute, the spiral flute having a stepped portion at a rear end of a chamfer portion or in a portion on a shank side from the rear end of the chamfer portion in the threaded portion, and a flute bottom diameter on a distal end side of the spiral fluted tap from the stepped portion being smaller than a flute bottom diameter on a shank side from the stepped portion. | 05-31-2012 |
20120275875 | MACHINE TOOL BIT - A machine tool bit, such as a tool for drilling, milling, reaming or tapping or the like comprising a work portion ( | 11-01-2012 |
20120301239 | DRILLING TOOL - A drill bit or boring tool having cutting edge that includes a pair of generally smooth curvilinear shaped portions that are positioned near the radial outer portions of the cutting edge and connected to one another by a pair of generally linear portions that traverse the longitudinal centerline of the tool. | 11-29-2012 |
20120315101 | THROW-AWAY ROTATING TOOL - A throw-away rotating tool includes at least two grooved portions | 12-13-2012 |
20130142582 | Head Replaceable Cutting Tool - A cutting tool has a cutting head and a shank. The cutting head has a body, a head threaded portion, a first helical head surface and a second helical head surface. The shank has a cylindrical portion, a shank threaded portion, a first helical contact surface and a second helical contact surface. The head threaded portion screw-engages the shank threaded portion. The first helical head surface is parallel to the thread of the head threaded portion and the first helical contact surface is parallel to the thread of the shank threaded portion. The second helical head surface and the second helical contact surface are inclined reversely to the first helical head surface and the first helical contact surface, respectively. The first helical head surface comes into surface contact with the first helical contact surface. The second helical head surface comes into surface contact with the second helical contact surface. | 06-06-2013 |
20130183112 | ROTARY TOOL AND CUTTING HEAD FOR SUCH A ROTARY TOOL - A rotary tool extends in the direction of an axis of rotation and includes a carrier having a coupling receptacle disposed at an end face, the carrier having a carrier cross section. The coupling receptacle is delimited in the entire region of the carrier cross section by an outer web having an end face forming a planar bearing area. The coupling receptacle is delimited by side walls which extend step-free from the bearing area to a bottom area and include a pair of opposing clamping segments extending in the circumferential direction and a pair of opposing torque segments arranged at an angle thereto. The tool also includes a cutting head exchangeably fastened to the carrier, the cutting head having a coupling pin disposed in the coupling receptacle. At least one of the pairs of segments is oriented inclined in relation to the axis of rotation. | 07-18-2013 |
20130330140 | REVERSIBLE TOOL ASSEMBLY - A reversible tool assembly includes a main member, a driven unit for driving the main member to rotate about an axis, first and second movable members coupled respectively to the main member and movable in the direction of the axis, and a reversible tool unit mounted pivotally between the first and second movable members. The reversible tool unit is movable together with the first and second movable members between an extended position, where pivot action thereof is permitted, and a retracted position, where pivot action thereof is not permitted. | 12-12-2013 |
20130330141 | Deburring Tool For Deburring Bore Margins - Deburring blade for deburring bore margins with an even or uneven shape, having a base body ( | 12-12-2013 |
20140086698 | Drilling Tool - A drilling tool for the installation of elongate members in walls comprises an elongate hollow shaft. The shaft has a proximate end and a distal end, the proximate end is provided with means for connection to a drill and the distal end is provided with means for connection to a drill bit so shaped and dimensioned that the drill bit forms a hole of a diameter greater than the maximum diameter of the shaft. The shaft comprises an aperture located at the proximate end of the shaft and adjacent to the means for connection to a drill, and an aperture located at the distal end of the shaft and adjacent to the means for connection to a drill bit. | 03-27-2014 |
20140147224 | Cutting Tool and Cutting Insert With A Rearward Resilience Slit - A cutting insert has a head portion and a coupling portion protruding rearwards from the head portion, along a longitudinal insert axis. The head portion has a base surface at a rearward end thereof, defining a base plane, and two major surfaces. A coupling portion rear surface is longitudinally spaced apart from the base surface and a cylindrical coupling peripheral surface extends between the coupling portion rear surface and the base surface. A resilience slit has two opposite inner walls converging forwards towards a slit inner end terminating at a slit inner end plane. The slit inner end plane is parallel to the base plane and spaced apart therefrom by a longitudinal distance. The inner walls of the resilience slit form an acute slit angle therebetween. | 05-29-2014 |
20140328641 | DRILL AND PRODUCTION METHOD FOR A DRILL - A drill bit has a shank ( | 11-06-2014 |
20150375356 | METHOD FOR PRODUCING AN AXIALLY EXTENDING TOOL TIP AND TOOL TIP - In order, in a drill tip ( | 12-31-2015 |
20160107245 | DISPOSABLE CHAMFERING BLADE - A disposable chamfering blade is provided with a mounting hole through which the disposable chamfering blade can be locked to a cutter body. One end of the disposable chamfering blade is provided with a conical cutter head whose conical periphery is circumferentially provided with a plurality of chip removing grooves. Each chip removing groove has a side face formed as a cutting edge such that the disposable chamfering blade is formed with a plurality of cutting edges for continuous cutting. | 04-21-2016 |
20190143423 | CUTTING TOOL | 05-16-2019 |