METHOD AND UNIT FOR DRILLING HOLE IN CONCRETEPROBLEM TO BE SOLVED: To drill a hole, for example, in a structure of reinforced concrete construction.NAKAMITSU MASASHI中光 眞史AIHARA SACHIHIRO相原 幸博SUGANO TOSHIO菅野 寿夫HIRAKAWA SACHIHIRO
Cracks on the floor from the work of a jackhammer, close up 4K Work of a jackhammer. Drilling hole in concrete wall. Close Up 1 4K Professional electric tools. Work of a jackhammer. Close Up 4K Selective focus. Work of a jackhammer. Drilling hole ...
A TOOL DRILLING (10), particularly for use in building foundation piles of concrete, ADAPTED TO RIDE IN THE BOTTOM OF A SPRING RODS (11) rotating about its longitudinal axis (X) AND ADVANCES TO THE along this axis. DRILLING TOOL consists of a roller (12) MOUNTED A WAY REGARDING LOCO RO...
Hole drilling system forming enlarged chamber at bottom of hole in ground for concrete pile has tube with boring crown at bottom end and fixed and ... D Hartmann 被引量: 0发表: 2005年 Hole drilling device for forming expanded-diameter hole portion A boring device for forming an increased-di...
In this paper, we study the magnitude of the effective prestressing force of steel strands in prestressed reinforced concrete structures. Through the theory of micro-hole release, the functional relationship equation between tensile stress and strain-containing coefficients A and B is established. Then...
Concrete Frequency 50Hz/60Hz Color RED/ ORANGE Thread 1 1/4-7 /beijing thread/1/2 inch Max. Drilling Diameter 15-405mm Packaging and delivery Selling Units: Single item Single package size: 98X42X28 cm Single gross weight: 33.000 kg ...
Whether you're a professional contractor or a homeowner tackling a DIY project, these drill bits are the go-to tool for precision and efficiency in masonry drilling. M14 Marble Opener Sintering Core Bit Diamond Hole Saw Drill Bit For Granite Brick Tile Ceramic Concrete Stone Drilling Product ...
Wet Type core bits have the most common 1-1/4" x 7unc Female thread size. This is a direct fit on all of our BLUEROCK Z1 concrete core drills Please confirm compatibility with your drill See our drill adapters for Hilti, Spline, Bi+, SDS ...
Multi-functional power tool 3800W Electric Road Cutter concrete cutting machine A A***i Dec 9, 2024 Delivery: Quality: Design: Service: Vacuum Brazed Concrete grinding disc Diamond Cutting Wheel Grinding Disc Saw Blade for Granite Marble Stone Tool ...
- Drill Bits Length: 4 5/16"(110mm), 6 5/16"(160mm), 8 1/4"(210mm), 9 13/16"(250mm), 10 1/4"(260mm), 17 11/16"(450mm) Related products Why choose us FAQ Q: What can we provide ? A: We are a professional manufacturer of hole saw and hav...