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WO/2012/091085A1 |
[Problem] To provide a precise and inexpensive drill. [Solution] Instead of forming a chisel edge (11) on a tip end section (12), a polygonal pyramid shape (1) is formed in a manner such that an oblique angle (θ1) defined from a drill c...
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WO/2012/091535A1 |
The present invention provides cutting insert for cutting machinery comprising a Zirconia Toughened Alumina (ZTA) having a nano metal oxide additive. A method method of fabricating cutting insert is also provided. The method comprises mi...
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WO/2012/083908A1 |
The invention relates to a single-lip drill (10) having at least one cutting edge (160) for solid drilling, comprising a drill head (13) arranged on a shaft (12), a chip removal channel (151) extending substantially along the axis of the...
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WO/2012/084357A1 |
The invention relates to a cutting element for a drill, designed for rotating about a rotary axis (R) when drilling and comprising at least one first grinding particle type (1). In order to increase the effectiveness and service life of ...
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WO/2012/081003A1 |
A fluted drill has a drill body (12) with a fluted drill cutting head (14) removably secured thereto. The cutting head has two drilling portions (18A, 18B) facing axially opposite directions. In axial view (A), the cutting head has at le...
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WO/2012/080637A1 |
The present invention relates to a surgical instrument for a technique for attaching bone fragments using a cannulated screw, the implantation of which is guided by a pin. The instrument (1) comprises: (i) a central channel (5) defining ...
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WO/2012/076678A1 |
A method of manufacturing a bit for a rotary drill, the bit including a drill tip (30), the method including providing a precursor structure (10) comprising substrate body (14) and a super-hard structure (12) joined to an upper surface o...
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WO/2012/072652A1 |
A drill intended for hard materials is described, with solid regions divided by flutes and with at least two main cutting edges which run tangentially with respect to the external periphery of the drill diameter, with transition to the c...
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WO/2012/068641A1 |
A drill bit (1) has a central axis (A) and comprises a tapered cutting end part (2) terminating in a drill tip (3) at one end of the drill bit (1), a shank (4) extending from an opposing end of the drill bit (1), and a body (4a) extendin...
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WO/2012/070640A1 |
Provided is a small-diameter drill that increases hole positional accuracy, suppresses the surface area reduction of thinning resulting from the progress of wear, resists breaking, is easily re-sharpened, and can maintain post-re-sharpen...
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WO/2012/069465A1 |
A bit for a rotary drill, the bit including a cylindrical body having at least two flutes provided therein, the cylindrical body terminating in a cutting end; and a cylindrical land defined by a peripheral face of the cylindrical body be...
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WO/2012/063515A1 |
This surface-coated cutting tool (1) achieves a high level of both wear resistance and chipping resistance. The surface-coated cutting tool (1) is provided with a substrate (7) and a coating film formed on the substrate (7). A first coat...
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WO/2012/058863A1 |
A compound-positioning and compound-cutting centering spiral cutter, comprising a cutter tip (18), the cutting tip being integrally provided with a plurality of spiral strips. A spiral auxiliary cutting edge (12) is provided on each spir...
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WO/2012/057000A1 |
The present invention provides a first hard film coated member wherein: layers A having a composition that satisfies TiaCrbAlcSidYe(BuCvNw) (wherein a, b, c, d, e, u, v and w respectively represent specific atomic ratios) and layers B ha...
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WO/2012/053090A1 |
Spiral flutes (18) are configured in such a manner that, with a straight line (AB) connecting a lowest point (A) on the inner peripheral side and an endpoint (B) on the heel side on the outer periphery in the cross sectional shape of the...
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WO/2012/047455A1 |
A cutting tool comprises a cutting insert (10), a tool holder (15), and a fastener (13). The cutting insert (10) comprises a cutting edge (20) and a fastener bore (12) adapted to accept a fastener (13) for fastening together the cutting ...
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WO/2012/047456A1 |
A cutting insert fastener (250) adapted to secure a cutting insert to a cutting tool holder. The fastener (250) comprises a fastener head portion (252) comprising at least one feature (254, 256) adapted to direct a coolant fluid to an in...
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WO/2012/045110A1 |
The present invention provides a power drill bit attachment comprising a receptacle for catching debris ejected from a substrate being drilled, the receptacle comprising (i) a first opening capable of accepting the debris; (ii) a second ...
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WO/2012/043822A1 |
Disclosed is a blade edge exchangeable cutting tool capable of suppressing change in the position of a cutting edge due to the rotational momentum in multiple different directions that acts on the cutting insert with the fastening force ...
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WO/2012/038343A1 |
In order to cost-effectively produce a twist drill, according to the invention a wire piece (1) is prepared from deformable and hardenable steel in the corresponding length. Two flutes (5) are rolled into the wire piece along screw lines...
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WO/2012/035070A1 |
A twist drill assembly (10) comprising a shaft (30) and a drill tip (20); the shaft having a single internal shaft conduit (34) for a fluid, extending between orifices (36, 37) formed into the shaft; the drill tip having an internal dril...
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WO/2012/032286A1 |
Bore cutting tool (2), particularly for cutting metal workpieces, comprising a tool substrate (4) and a tool coating (8) on a surface of the tool substrate wherein the bore cutting tool comprises a plurality of pits (6) in the surface of...
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WO/2012/032966A1 |
Provided is a cutting tool (1) which is improved in disposal of cuttings and resistance to adhesion. This cutting tool (1) includes a hard sintered body (4) at least in the cutting edge, and is characterized in that the cutting tool (1) ...
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WO/2012/032839A1 |
Provided is a surface-coated cutting tool which combines wear resistance with chipping resistance to a high degree. This surface-coated cutting tool is characterized by comprising a base and a coating film formed on the base, the coating...
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WO/2012/026098A1 |
A method of producing a cutting tool provided with a cemented carbide base material and a coating film formed on the base material, comprising the steps of forming a coating film of at least one from among metal nitride, metal carbide, a...
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WO/2011/137494A9 |
An undercutting tool for producing an undercut in a bore, the undercutting tool comprises a tool body, which can be at least partially inserted into the bore that is to be undercut, at least one wedge moveably attached to the tool body a...
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WO/2012/027057A2 |
A combination end milling/drilling/reaming cutting tool includes an end milling portion, a drilling portion, and a reaming portion. The cutting tool also includes a neck portion between the end milling portion and the drilling portion, a...
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WO/2012/021211A2 |
A cutting tool (10) having a shaft (15) with a longitudinal axis (20), wherein the cutting tool (10) includes a first flute (32) extending about the longitudinal shaft (15) along a helix angle and a first cutting edge (56) adjacent the f...
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WO/2012/018063A1 |
Provided is a coated tool that achieves a long life during high-speed cutting of steel and cutting of stainless steel and hard-to-cut material, etc., and achieves a long life in metal molds. The coated tool comprises a base material and ...
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WO/2012/017645A1 |
[Problem] To achieve a drill which has a long service life and enables high-speed cutting by providing improved strength to the cutting edge thereof and providing control so that cuttings are directed in an upward direction along a hole ...
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WO/2012/013425A1 |
The invention relates to a honing tool for positional honing. The honing tool according to the invention comprises a solid, unslit tool body, which is rigidly connected to the spindle of a honing machine. To achieve great stiffness, the ...
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WO/2012/015172A2 |
The present invention relates to an anchor bolt-hitting punch, and more specifically one designed to allow an anchor bolt to be safely and firmly inserted and secured in a fastening hole made in the concrete ceiling surface of a building...
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WO/2012/007450A1 |
The invention relates to a drilling tool, wherein a cutting edge bezel (18) is provided on a flank (20).
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WO/2012/008959A1 |
The present disclosure is directed to a multi -piece spade drill head (3) for a spade drill, wherein the spade drill includes an elongate body portion (281) and a cutting portion removably secured to an end of the body portion (281). The...
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WO/2012/008185A1 |
A surface coating cutting tool exhibiting both high wear resistance and high fracture resistance. A surface coating cutting tool includes a base material and a coating layer. The coating layer comprises a single layer or multiple layers....
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WO/2012/006990A2 |
The invention relates to a drilling tool (1) comprising a clamping shaft (2) and a cutting element (3) contiguous with said clamping shaft (2). The cutting element (3) comprises at least one flute (4) having a flute surface that has a co...
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WO/2011/160447A1 |
A quick assembled and unassembled joint comprises a body (1), wherein the back end of the body (1) is provided with a shaft hole (14) in which a power output shaft (3) is inserted and a limit hole (15) which is perpendicular to the shaft...
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WO/2011/158378A1 |
Disclosed is a ring-shaped hole cutter capable of smoothly discharging chips. The ring-shaped hole cutter includes a plurality of cutting blades comprising a first cutting blade (38a) and a second cutting blade (38b) disposed alternately...
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WO/2011/156150A2 |
A superabrasive cutting element including a diamond or other superabrasive material table having a peripheral cutting edge defined by at least one chamfer between a cutting face and a side surface of the table, an arcuate surface extendi...
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WO/2011/149143A1 |
An exemplary embodiment of the present invention relates to a drill bit mounted to the front end of a drill blade. The drill bit that is inserted and seated into a recessed groove formed in the front end of a drill blade comprises: a mai...
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WO/2011/142370A1 |
In order to increase the durability of a deep-hole drill head, wherein a cutting blade and a guide pad are brazed to a head body, and to cause spiral marks to not arise even after long-term use, disclosed is a deep-hole-boring drill head...
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WO/2011/139960A1 |
A drill bit, comprising a shank (5) with helix (6) and a drill head (9), wherein the drill head (9) is designed as a carbide part and is inserted into an end- face connecting groove (4) of the shank (5), wherein the base (4a) of the conn...
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WO/2011/139429A2 |
A reamer having a cylindrical cutter part (1) having a plurality of cutting bodies (4) arranged on the cylinder circumferential surface, the cutting bodies (4) having a cutter region (12) realized as a cutting strip and having a guide re...
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WO/2010/093485A9 |
One non-limiting aspect of the present disclosure is directed to a multi-piece spade drill head for a spade drill, wherein the spade drill includes an elongate body portion and a cutting portion removably secured to an end of the body po...
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WO/2011/135277A1 |
The present invention is concerned with twist drills for drilling of composite materials such as carbon fibre reinforced plastic (CFRP) and glass fibre reinforced plastic (GFRP). The present invention proposes that a twist drill (2) is p...
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WO/2011/137310A1 |
A tool bit (100) providing a combined drill bit and milling bit is disclosed herein. The tool bit in one embodiment includes a working section (104) having a longitudinally extending central axis (116), an O-flute (112) extending along t...
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WO/2011/132686A1 |
Disclosed is a roughly rod-shaped gun drill (1) provided with a shank portion flow path (4a) which circulates a coolant internally, and a tip portion flow path (4b). On the tip of the gun drill (1) are formed a cutting surface (5), a fir...
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WO/2011/131575A1 |
A drill head (100) for a BTA/STS or ejector deep hole drilling tool, comprising a drill head body (101) that can be rotated about an axis of rotation (113), having a drilling side (160) and a hollow channel (107) with a chip collecting o...
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WO/2011/133726A1 |
A hole saw arbor system includes a tool-bit holder comprising a body having a proximal end and a distal end, the proximal end configured to be coupled to and driven by a driving device. A substantially longitudinal tool-bit holder bore m...
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WO/2011/127046A1 |
The invention relates to a method for producing a drill bit, in particular a masonry drill bit, comprising a drill bit shank (1), wherein the drill bit shank (1) has an insertion section (2), a helical section (4) axially adjoining the i...
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