Matches 1 - 44 out of 44


Match Document Document Title
US20140271008 METHOD OF JOINING SINTERED PARTS OF DIFFERENT SIZES AND SHAPES  
A method of joining a plurality of parts to form a unitary body includes providing at least two sintered parts. Each of the parts is formed of a hard metal composition of material. The sintered...
US20080019787 Drill for machining fiber reinforced composite material  
A diamond coated drill capable of drilling holes in fiber reinforced composite materials. The drill is made from a tungsten carbide (WC) substrate with cemented cobalt (Co) in a range between...
US20090136308 Rotary Burr Comprising Cemented Carbide  
A rotary burr comprising cemented carbide for removing material from a workpiece includes a shank and a working portion and a shank. A surface of the working portion includes a plurality of...
US20070081870 TWIST DRILL AND METHOD FOR PRODUCING A TWIST DRILL WHICH METHOD INCLUDES FORMING A FLUTE OF A TWIST DRILL  
There is now provided a twist drill and a method for producing a twist drill which method includes forming a flute of a twist drill. The drill has drill material and a tip portion with a cutting...
US20110188956 Coated twist drill  
The present invention concerns a twist drill comprising a shank and a cutting portion which is defined by the axial length of the chip flutes and which is at least partially coated. To provide a...
US20090136309 APPARATUS AND METHOD FOR CHIP EVACUATION  
A chip evacuation device for evacuating chips from a workpiece is disclosed. The chip evacuation device includes a sleeve having a first end and a second end with a sidewall extending...
US20090022561 ROTARY CUTTING TOOL  
A rotary cutting tool especially adapted for cutting composite materials. The geometry of the cutting tool provides cutting forces that are controlled and directed to the inside of the hole being...
US20080138165 DRILL BIT  
A drill bit comprises a shank defining a longitudinal axis. Three ribs extend in a curve about the longitudinal axis. The ribs include side edges extending for a first portion at a first angle...
US20160256937 ROTARY TOOL AND METHOD FOR PRODUCING A ROTARY TOOL  
The rotary tool, in particular, the drill (2), extends along a longitudinal axis (4) and has a front surface (6), a center (12), at least two main cutting edges (8), each extending outward from...
US20060039767 Carbide drill capable of drilling hole with reduced degree of work hardening  
A drill including flutes formed therein and extending from an axially distal end portion thereof toward an axially proximal end portion thereof, so as to provide cutting edges in the axially...
US20120269591 DRILL FOR COMPOSITE MATERIAL AS WELL AS MACHINING METHOD USING SAME AND MACHINING APPARATUS USING SAME  
An object is to provide a drill for a composite material which can realize high-quality boring hardly causing burrs or delamination in boring of a member to be machined containing a fiber...
US20110081215 TWIST DRILL  
Provided is a double-angle twist drill that increases the quality of drilling without increasing the amount of manufacturing work or the like. A secondary cutting edge 4b is substantially parallel...
US20130170920 DRILL AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THE SAME  
A drill according to an embodiment of the present invention includes a body part and a cutting part with a cylinder-like shape. The cutting part includes two cutting edges located separately from...
US20120087753 DRILL AND CUTTING METHOD USING SAME  
A drill includes a plurality of cutting edges formed at a front end portion; twisted flutes which are formed on an outer periphery from rear end portions of the cutting edges, respectively, and...
US20100124466 Trepanning Drill  
A trepanning drill having a drill axis of rotation (A) and comprising a drill bore extending rearwardly from a front portion thereof. The drill body has at least two cutting edges formed in the...
US20060269372 Twist drill  
A twist drill has a pair of concave-shaped main cutting edges continuous outwardly to respective center cutting edges, and a pair of corner cutting edges receding at an angle from the outer ends...
US20110170974 DRILL  
It is provided a drill having a plurality of twist grooves disposed around a drill axial center O and main cutting edges formed along their respective twist grooves in opening portions of the...
US20050053439 Two-flute twist drill  
A twist drill for use, predominantly by non-professional do-it-yourself workers incorporates a flute architecture with an internal ridge for promoting the break up of chips into short length...
US20150266107 Drill and Drill Head with Drill Margin  
A drill or drill head with a drill margin which comprises a margin extremity adjacent to a relief surface. The margin extremity is located outside of the cutting diameter.
US20090317202 STRONG HIGH PERFORMANCE TWIST DRILL  
A strong high performance twist drill which aims at providing a high performance twist drill to solve the existing problems effectively. The twist drill can reduce the change in value of the rake...
US20100054880 AUGER BIT WITH A REMOVABLE TIP  
An auger bit with a removable tip is provided. The removable tip is coupled to a first end of the auger bit. The auger bit includes a second end adapted to repeatably removably couple to a drill....
US20090010728 Axial Asymmetric Edge Drill  
The present invention provides a drill for making a dilled hole having a high circularity. The axial asymmetric edge drill has a chisel portion formed in the tip center so that the chisel portion...
US20090047085 Multiple spur multiple spiral groove twist drill  
A MULTIPLE SPUR MULTIPLE SPIRAL GROOVE TWIST DRILL includes a flute, whose shank is clamped and secured to a tooling holder of a drilling machine and contains multiple spiral flute grooves; each...
US20090148250 Drill Bit  
A drill bit comprising a body including at least four flutes being formed on and extending along a longitudinal axis of the body and a web portion disposed between the at least four flutes. The...
US20080152445 REAMING TOOL AND A PROCESS FOR MANUFACTURING SUCH REAMING TOOL  
The invention relates to a reaming tool which has on its enveloping surface substantially helical flutes. High hardness cutting materials are brazed or soldered to the base material of the reaming...
US20150283625 TWO-EDGE DOUBLE MARGIN DRILL  
The problem of making it possible to shorten as much as possible the distance from a major margin to a minor margin of a two-edge double margin drill in an axial direction is addressed. An...
US20110116884 HELICAL BIT TOOL  
A helical bit tool includes a bit head (1) with multiple helical pieces (2). Each helical piece has a side cutting edge (3) which faces on the direction of cutting operation. The surface of the...
US20150135905 Rotary cutting tool with helically running cutting edges and method of manufacturing such a tool  
The invention relates to a rotary cutting tool (10), in particular a milling tool, boring tool or a reamer, with a metallic base tool body (12) with at least one preferably helical flute (16, 18),...
US20130164089 DRILLING TOOL  
The invention relates to a drilling tool comprising a clamping shaft and cutting element contiguous with said clamping shaft. The cutting element comprises at least one flute having a flute...
US20090317203 SPIRAL FLUTED TAP  
As shown in FIG. 1, rake surfaces of cutting edges 26 of a shank-side thread portion 24b formed in a full thread portion 24 are formed with chamfers 30 having the chamfer height Hmen fallen within...
US20170066062 DRILL  
A drill including: a drill main body that rotates about an axis of the drill main body; a chip discharge groove formed on an outer periphery of a tip portion of the drill main body; and a cutting...
US20100008740 ROTARY CUTTER  
Embodiments provide a helical cutting tool and a helical cutting bit that may be utilized to cut various materials. The helical cutting bit and cutting tool include a variety of features to...
US20090074527 Drilling Tool  
A cutting blade 5 is formed by firmly fixing a tip 4 comprising a superabrasive compact to the top end of a shank 2. Nick grooves are formed on the cutting blade as a lateral separation means for...
US20120020751 Multi-directionally fluted rotary cutting tool  
A rotary cutting tool having a longitudinal body with a rotational axis, comprising a proximal aspect allowing for insertion into an unmotorized or motorized drill, a distal aspect with one or...
US20060285935 Drill structure having cutting blade  
This invention relates to a drill structure having cutting blade, comprises a drill tip, a cone top part, head part, cutting part, scrap-guiding slot and drill body. The drill tip forms a top end...
US20130098505 CUTTING BIT FOR PRUNING TOOL  
A cutting bit for a pruning tool includes an elongate body having a first end and a second end. At least one flute extends at least part of a distance between the first end and the second end of...
US20110123284 REAMER TOOL  
An improved reamer tool is described that has lower torque requirements, despite having more blades. Because of the lower torque requirements, the reamer can be used with a handheld drill. The...
US20110200404 SPIRAL TAP  
A spiral tap is disclosed having a thread portion having an external thread, spiral flutes which is fluted in the same direction as a cutting/rotating direction, as seen in a direction away from a...
US20080267726 Drill  
A drill can achieve extended tool life while ensuring high machining efficiency. A flute length of the drill is set to be within a range of 6D or more and 10D or less relative to an outer diameter...
US20060115338 Method for making miniature tri-blade drill and structure of the same  
The invention discloses a method for making a miniature tri-blade drill structure and a structure of the same, wherein the method includes steps of grinding a metal round post having appropriate...
US20060078393 Cutting improvement structure for a drill  
This invention relates to a drill having hole-drilling alignment precision, and drilling capability, and scrap-release capability. It comprises a drill tip on the cutting part and a drill body...
US20110239375 BIT STRUCTURE FOR POWERED TOOLS  
A bit structure for powered tools includes a shank action end at one end of a bit and a tool gripping section at another end. The shank action end has a conical directing portion formed by...
US20090191016 Drill  
A drill is designed to ensure wear resistance to achieve extended tool life. In the drill, at least the surface of the cutting edge is coated with a hard compound, and the film thickness dimension...
US20090185877 Gundrill, and method of drilling with the same  
A single flute gundrill has a cutting tip having a single cutting edge arranged so that when the gundrill rotates the cutting edge performs cutting in a predetermined cutting direction; a shank...

Matches 1 - 44 out of 44