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Document Title |
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7611312 |
Core cutter
A core cutter comprises a cylindrical base, a plurality of cutting portions provided at a tip end of the base, discharge grooves configured to discharge chips cut by the cutting portions, and an...
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7578324 |
Self-centering tool
A bit ( 20 ) for a tool is provided. The bit includes a housing ( 22 ) having a cutting portion ( 24 ) and a shank ( 26 ). The bit also includes a post ( 40 ) disposed within the housing and...
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7556459 |
Hole saw having a drill bit with a pilot tip
A hole saw has an arbor and a cup shaped cutting member. The cup shaped cutting member has an annular skirt with a plurality of teeth at its free end. A drill bit is secured on the arbor. The drill...
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7534076 |
Core bit
In a core bit formed with a drill portion in a cylindrical shape formed with a boring blade on one end side thereof and a mounting portion in a cylindrical shape mounted to a chuck portion of a...
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7517179 |
Small holesaw mandrel assembly
A holesaw mandrel assembly has a mandrel with a first shanking end, a body, and a second extending end which includes a threaded spud to receive a holesaw. A first member is secured on the second...
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7513718 |
Alignment device for a hole saw and method of enlarging a hole using same
An alignment device for hole saw includes a first alignment member having a first end having an outer width slightly less than an inner diameter of the hole saw and serves as an alignment bearing...
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7488146 |
Large holesaw mandrel assembly
A holesaw mandrel has a mandrel body with at least one bore, a pilot drill bit bore, and a first end coupled with the body. The first end is coupled with a driver. A second end extends from the...
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7438509 |
Slug retrieval apparatus
The slug retrieval apparatus is used with a hole saw with chuck mechanism, after a pilot hole is drilled. The apparatus is fitted within the chuck mechanism and the hole saw then used to cut a hole...
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7384222 |
Hole saw
A hole saw includes a shaft, a hole-cutter and an adjustable outer cutter unit. The shaft has a bottom coupling hole for receiving a pilot drill, a top coupling rod for fastening to a driving tool,...
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7371034 |
Drilling attachment
A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid...
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7357605 |
Pilot drill with coupon retainer and hot tapping machine using the same
Pilot drill with coupon retainer and hot tapping machine using the same that positively retains a coupon cut out by a hole saw. The pilot drill bit has a shank having a driving end for attachment...
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7350595 |
Drilling device and drilling method
A drilling device is composed so as to drill a drilled object composed of a brittle material with the end of a rotating core bit by using a core bit in which a bit, formed by dispersing and...
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7305746 |
System for removing heat transfer fins from, and beveling the ends of, boiler tubes
A system is disclosed to use a first rotary milling head to break or cut the bond of a heat transfer fin base to a boiler tube, thereby removing the heat transfer fins from the boiler tube, and a...
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7264428 |
Hole saw and cutter
A hole saw cap for a hole cutter, the cap includes a plate defining a substantially circular peripheral groove and an annular shelf extending radially outwardly from the peripheral groove, the...
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7237984 |
Hole-cutting saw
The invention relates to a pilot guide and hole-cutting saw system for cutting deep holes through an indeterminate depth of material while eliminating the problem of drift and wobble associated...
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7228776 |
Punch assembly
A Punch Assembly and the method of use thereof is disclosed. Also disclosed is. The device is designed to be accepted within the chuck of a powder-actuated tool. The device can create a hole in...
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7189036 |
Coring bit
A coring bit provides easy core removal by utilizing a series of lateral blades which extend from the top cutting surface to the base of the bit. The lateral blades and inner faces of the coring...
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7175372 |
Quick release arbor
An arbor system includes an arbor, a clamp body of a power tool, a tightening feature and an optional snap feature. The arbor has a flanging feature, a thread and a number of circumferentially...
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7163362 |
Hole saw assembly
A hole saw assembly including a boss adapted to hold a hole saw and having a plurality of connecting shafts. The shafts rotationally engage a driving means and longitudinally engage a locking...
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7160064 |
Hole saw slug removal device
The hole saw slug removal device is a device constructed to fit within a hole saw that provides for automatic ejection of waste slugs from within the hole saw. The hole saw slug removal device...
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7134815 |
Interchangeable holder for hollow drills
An interchangeable holder ( 1 ) for hollow drills, having a support element ( 4 ) for receiving a base end ( 11 ) of a drill rod ( 10 ) of the hollow drill on a front face, and a holding device (...
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7131506 |
Flightless rock auger for use with pressure drills with quick attachment and method of use
A flightless rock auger is used for drilling postholes through rock with the use of hydraulic pressure and at slow revolution per minute. The rock auger is used in combination with a conventional...
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7112016 |
Universal quick change hole saw arbor
An arbor assembly includes a shank mounted to the chuck of an electric drill, an adaptor which supports a hole saw mounted to the shank, and a sleeve for locking and unlocking the adaptor and the...
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7104738 |
Hole saw arbor
An arbor ( 20 ) for a tool is provided. The arbor includes a shaft ( 22 ) and a locking mechanism ( 24 ) operatively coupled to the shaft. The arbor also includes an adapter ( 26 ) removably...
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7101124 |
Hole saw assembly
A hole-saw assembly including a hole-saw having at one end a plurality of cutting teeth and at the other end two shafts. The assembly includes a mandrel coaxially aligned with said hole-saw and...
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7097397 |
Hole-saw assembly including two hole-saws
The present invention relates to an improved hole-saw assembly and in particular, to a mandrel engageable by a drill and including at least one locking ring or annulus that allows for the base of...
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7073992 |
Arbor for hole cutter and related method of use
An arbor is provided for a hole cutter having an outer surface defining a threaded hole, and a pair of pin holes spaced radially relative to the threaded hole. The arbor has an arbor body defining...
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7008149 |
Tool kit and method of using
A new and improved tool kit and method of using the tool kit for use in making a substantially perpendicular indented surface around an existing threaded bolt hole in a workpiece is disclosed. The...
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7001119 |
Arbor apparatus for rotary tools
An arbor apparatus for mounting an attachment to a rotary tool includes a mandrel with a drive stage insertable into a passage in a drive boss such that rotation of the mandrel rotates the boss....
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7001116 |
Workpiece removal device for a hole saw
A workpiece removal device 10 for a hole saw 8 includes a positioning member 12 joined to the hole saw 8, a first securing member 14 joined to the positioning member 12, a biasing...
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6971209 |
Stabilization system for an anchor and method of use thereof
A stabilization system, including a drive head, stabilization cap and anchor is provided for boring an anchor into the ground and engaging the stabilization cap with the surface of the ground. The...
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6966730 |
Shank installation structure and cutters
A shank attaching structure with as less axial free movement as possible and of a simplified construction, a cutter for use with the shank attaching structure, and a cutter for use with the shank...
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6951058 |
Marking system
A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment...
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6948574 |
Ultrasonic annular core bit
A core bit for abrasive cutting including a cylindrical tube ( 3 ) provided at its end surface with cutting or abrasive bodies ( 2 ) and a cover ( 4 ) provided at an opposite end surface of the...
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6939092 |
Sheet metal hole cutter
A sheet metal hole cutter has a cap plate defining a substantially circular peripheral groove and an annular shelf extending radially outwardly from the peripheral groove. An elongated band forming...
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6929430 |
Pipe fitting removal tool
A method and tool are disclosed for removing a plastic water closet flange from the waste pipe to which it is attached so that a new flange may be chemically bonded to the existing waste pipe. A...
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6926476 |
Core body lock device of core drill and core body used for the device
It is an object to provide a locking device of a core drill which automatically locks a core body when the core body is attached to a base body, the coupling relation between the base body and the...
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6908264 |
Quick change drill bit
A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted...
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6902357 |
Cutting tool
A rotatable cutting tool having s support region ( 1 ) with an end surface ( 2 ) and a plurality of recesses ( 4 ) extending from the end surface ( 2 ) and in which, respectively, a plurality of...
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6893194 |
Workman's tool for accessing cavities
A tool assembly comprising a cylindrical hole saw having an annular cutting surface and at least one rebate blade positioned adjacent to the exterior sidewall of the hole saw having a cutting...
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6890132 |
Bolt on drive assembly for a core drill
A bolt on drive assembly for a core drill which utilizes a spoked reinforcer mounted between a pair of discs. The discs are removably mounted on the tube by bolt fasteners. A drive connection is...
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6887018 |
Chuck for annular core bit
A chuck for an annular core bit ( 1 ) having an inner thread ( 2 ) includes a motor-driven rotatable spindle ( 4 ) having a threaded support ( 5 ) cooperating with the inner thread ( 2 ) for...
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6884245 |
Hardware for cutting bone cores
A surgical bone coring cutter is tubular in shape with the cutting end fabricated of a thicker section wall designed with both an inner and an outer cone. The double cone section causes the kerf to...
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6881017 |
Hole saw guide adaptor
The hole saw guide adaptor is a special adaptor for a standard hole saw which allows an individual to enlarge an opening in a wood or other work surface after an opening has already been cut in the...
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6881016 |
Core retainer
A core retainer includes a base plate releasably attached to a concrete floor from which a concrete core is to be removed. A brake assembly atop the plate includes a plurality of brake pads for...
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6877243 |
Shape cutting system
A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment...
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6866032 |
Tool and method for preparing a block for receiving an electrical receptacle
The present invention is directed to a coring drill and method for preparing a block for containing a receptacle assembly. The coring drill comprises a generally cylindrically-shaped corer hub...
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6860172 |
Method for making a powdered metal compact
A method for producing a powdered metal compact for a cutting head to be used in a metal cutting tool uses a punch and die assembly. The resulting cutting head has apertures communicating between a...
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6857831 |
I-joist hole cutting apparatus
A hole saw for cutting standardized holes in the web portion of an I-joist features a light weight three spoke body having a rim with continuous circumference and three inserted cutting blades...
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6857830 |
Roof core cutter
A roof core-drilling apparatus and drilling guide adapted to be used in combination with a rotary drive means in which the mandrel portion of the roof core-cutter operates not only to mechanically...
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