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| Number | Title | Issue Date |
| 7753627 | Single-lip drill and method for the production thereof Disclosed is a single-lip drill comprising a drill head (11) that is provided with a blade (12) which is embodied on said drill head. The blade encompasses a cutting edge (19) for machining a workpiece (16) in a cutting manner. At least o... | 07/13/2010 |
| 7645102 | Drill head for deep hole machining The invention provides a drill head for deep hole machining capable of raising circularity and straightness of a hole and improving precision of hole machining. In the drill head for deep hole machining constituted by fixing a cutting blade to a tip surface of a hea... | 01/12/2010 |
| 7371032 | Boring bar for internal turning A boring bar, such as for internal turning, includes a front pocket that is defined by a shelf-like surface and a ramp surface, an insert seat that is countersunk in the shelf surface and disposed asymmetrically in relation to a center axis, a chip flute that is cou... | 05/13/2008 |
| 7329073 | Cutting tool and tool head The present invention relates to a tool head preferably for milling. The tool head is connectable to a toolholder. The tool head includes a cutting portion and a mounting portion. The mounting portion includes an axial stop surface and a radial stop surface. Dimensi... | 02/12/2008 |
| 7320565 | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip ev... | 01/22/2008 |
| 7296953 | Deep hole drill A deep hole drill comprising a cutter carrier, a replaceable cutting insert and at least one replaceable guide strip. The cutter carrier is embodied in such a way that it can be used for a predetermined nominal diameter range. In order to adjust the deep hole drill ... | 11/20/2007 |
| 7281885 | High-speed milling cutter A high-speed milling cutter has a tool parent body and one or more plate-shaped cutting inserts with a convex, approximately arc-shaped cutting edge. The insert(s) is/are fastened in an insert seat of the tool parent body. Mating elements with mutual contact surface... | 10/16/2007 |
| 7273334 | Deburring cutter for deburring edges of drilled holes The first cutting edge can advantageously remove a large burr from the edge of a drilled hole with high effectiveness, because of the particularly aggressive cutting action of the first cutting edge. The following inclined second cutting edge advantageously allows p... | 09/25/2007 |
| 7270503 | Cutting tool for rotating and drilling into solid blocks The invention relates to a cutting tool for rotating and drilling into solid blocks, comprising a drill shank (1) and a cutting head (2) on one end. The cutting head (2) has a straight, front-face cutting edge (4) extending approximately ... | 09/18/2007 |
| 7234906 | Threaded insert for fasteners A threaded insert for providing stronger threads to a parent material. The threaded insert includes a bushing portion having male threads on the external surface and female threads within an internal bore. The threaded insert also includes keys which lock the thread... | 06/26/2007 |
| 7228631 | Contouring shave The invention is directed to a hand tool for cutting shavings from the surface of a workpiece of wood (or other workable material) to shape and make smooth any three-dimensional surface having concave, flat, and/or convex contours. The thickness of the shavings is m... | 06/12/2007 |
| 7172374 | Backspot facing tool A backspot facing tool includes a shaft and a cutting element. The shaft has a first and second ends and a recess located near the first end. The shaft also includes an outer circumference and is centered on a first axis. The cutting element has an inner portion and... | 02/06/2007 |
| 7156588 | Cutting head for rotary cutting tool A cutting head for a rotating cutting tool for metal cutting operations. The cutting head has an axially adjustable cartridge which is an integral single piece. A slit divides the cartridge into a clamping portion and a main body portion, the clamping portion being ... | 01/02/2007 |
| 7147411 | Gundrill A method of forming deep holes and a gundrill therefore is disclosed. The gundrill has an elongate tubular shank and a cutting tip, each provided with a tubular central region supplying pressurized drilling fluid and a non-circular fluid cross-section defining a dri... | 12/12/2006 |
| 7097396 | Drill bit An object of the present invention is to provide a drill bit which is simple in design, high in rigidity, and superior in durability and whose drilling function is in no way inferior to that of conventional drilling bits. To this end, in a drill bit comprising a cut... | 08/29/2006 |
| 7029211 | Pipe chamfer tool The present invention a pipe chamfer tool including a body having at least one aperture defined therein, the aperture sized and adapted to slidably receive a pipe. The chamfer tool further includes a cutting blade housed in the body defining at least one cutting sur... | 04/18/2006 |
| 7018144 | Drill The drill of the present invention has only one cutting discharge groove (11) formed in the outer periphery of a bit (10). A leading edge protruding farthest towards the tip in the axial direction in a tip flank (12) is composed at a single poin... | 03/28/2006 |
| 7018143 | Reduced energy consuming, lateral cutting twist drill A modified prior art twist drill embodies structural features that require less energy to drill a hole during a normal plunge operation and allow for lateral cutting movement during extraction of the twist drill from a drilled work piece. ... | 03/28/2006 |
| 6993848 | Pipe preparation device A pipe preparation device is disclosed for chamfering pipe ends and placing witness marks thereon to provide a visible indication that the pipes are properly engaged with a coupling. The device includes a body having co-axially aligned receptacles at opposite ends, ... | 02/07/2006 |
| 6976812 | Small drill A small drill includes one chip-discharging flute which is helically formed in the exterior surface of a cutting portion of the small drill. The small drill also includes a flute-shaped portion which is formed in the front region of the chip-discharging flute in the... | 12/20/2005 |
| 6939090 | Throwaway tip and throwaway-type cutting tool A throwaway-type cutting tool including a tool body having a distal end, and a plurality of throwaway tips mounted to the distal end. Each of the plurality of throwaway tips including a plate of a substantially rectangular shape. The plate has a corner angle of two ... | 09/06/2005 |
| 6929433 | Drill and surface insensitive starting drill for difficult materials and deep holes A fluteless pyramid point drill for spotting holes for drills having an included angle from 90-160°. The preferred tool is double ended. Another embodiment features the pyramid point on the back end of a penetrating drill. An enhanced pyramid point geometry enables... | 08/16/2005 |
| 6890130 | Tire machining tool A cylindrical cutting tool for a tire detreading or machining machine, the circular blade of which has a beveled cutting edge, wherein the cutting edge is interrupted by at least one notch, that is to say a portion having a lower axial height than the cutting edge. | 05/10/2005 |
| 6874978 | Boring bit and methods for manufacturing boring bits Boring bits and methods for manufacturing boring bits. The method includes the acts of forming a shank including one end connectable to a power tool and an opposite end, molding a cutting head separate from the shank, the cutting head including a base wall and a sid... | 04/05/2005 |
| 6825630 | Machine tool, tool, and tool holder A longer life, low cost tool and tool holder enabling change of posture with respect to a spindle, having a high machining accuracy of a workpiece, and resistant to generation of vibration or heat, provided with a working tool for processing a workpiece, a motor hav... | 11/30/2004 |
| 6758639 | Bit for cutting drywall A drywall routing bit for cutting laterally in a drywall or sheetrock panel includes an elongated body terminating at one end in a tip for penetrating the panel. The bit includes a single helical flute which defines a cutting edge at a helix angle relative to said l... | 07/06/2004 |
| 6626616 | Tapping tool for PVC pipes and fittings A tapping tool for repairing damaged threads on PVC pipe and PVC pipe fittings (e.g. T-connectors, elbows, etc.) includes an elongate shaft with a handle member fixed to a proximal end and a head fixed to an opposite distal end. A threaded tap formed of h... | 09/30/2003 |
| 6550120 | Threaded conversion kit for replacement ball joints An aftermarket retrofit kit is used to prepare control arm bosses of automotive suspension systems to receive new, replacement ball joints. The kit includes a special cutting tool for forming obtuse threads in the apertures of aluminum suspension system m... | 04/22/2003 |
| 6357471 | Valve insertion method and cutting tool A valve insertion method without stopping passage of fluid, wherein, first, a part of an already-installed pipe is enclosed air-tightly with a valve casing, a milling type cutting tool which has cutting edges on a free end surface and an outer circumferen... | 03/19/2002 |
| 6315505 | Minimum heat-generating work piece cutting tool A cutting tool in the form of drill bit or lathe knife is formed with a cutting edge to slice off material from a work piece and with a construction providing minimal contact of the tool against the side wall of the work piece cut by the tool. The cutting... | 11/13/2001 |
| 6206619 | Non-adjustable single cylindrical lip boring tool A first embodiment of a non-adjustable single cylindrical lip boring tool includes a shank, a body, a straight side lip, and a front cutting edge. The shank is formed on an end opposite the body. The straight side cutting lip is formed on the body. The st... | 03/27/2001 |
| 6206617 | Reamer with guide surface and method of finishing hole by using the same A reamer including; a generally cylindrical cutter body having (a) a flute formed in an outer circumferential surface of the cutter body and extending from an axially distal end of the cutter body toward an axially proximal end of the cutter body, (b) a c... | 03/27/2001 |
| 6107150 | Method of making high performance transistors using channel modulated implant for ultra thin oxide formation The present invention is directed to a semiconductor device having an ultra thin gate oxide and a method for making same. The method is comprised of implanting nitrogen into a region of a semiconducting substrate, and forming a gate dielectric above the r... | 08/22/2000 |
| 6045304 | High-speed gun drill A gun drill having a reversed taper approximately ten times greater than the conventional drills, or approximately 0.3 mm per 100 mm, between a tip of the cutting edge and a point some distance away therefrom is provided. The gun drills deep holes at high... | 04/04/2000 |
| 6035512 | Machine tool extension and method of forming the same A machine tool extension for interfacing a cutting tool having a generally cylindrical shank portion to a tool holder having a central opening. The extension comprises an elongate, generally cylindrical shank member having first end and a reduced diameter... | 03/14/2000 |
| 6033159 | Material-removing precision machining tool A reamer for material-removing finishing machining of drilled surfaces in workpieces made of metal. The reamer has a blade insert and two guide bars associated with the blade insert. The first guide bar trails the blade insert, as seen in the direction of... | 03/07/2000 |
| 6030156 | Drill and sharpening fixture A single point drill particularly adapted to producing small diameter deep holes utilizing a peck feed cycle routine. The preferred embodiment features a limited flute length with a depth approximately 1/3 the drill diameter and a dual point edge consisti... | 02/29/2000 |
| 6024520 | Auger drill bit An auger bit for forming bores having a circular cross section in a workpiece is disclosed. The bit has an elongate auger portion, a shank, a lead screw, a chisel blade, a spur blade, and a shearing blade. The elongate auger portion has an elongate shaft ... | 02/15/2000 |
| 6019555 | Debur tool for simultaneously removing burrs from and chamfering a hole in a workpiece A debur tool for simultaneously removing burrs from holes in a workpiece, such as those in a header box tube sheet, also has a beveled surface adjacent a cutting edge for chamfering an edge of the hole from which a burr is removed. The cutting edge is hor... | 02/01/2000 |
| 5967712 | Cutting tool for machining bores in materials having spring-back A cutting tool such as a drill or reamer for machining a bore in a workpiece is provided with at least one chamfered cutting edge on its distal end having an enlarged radial extent. The chamfered edge is defined between a tapered leading end, and an under... | 10/19/1999 |
