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Process and tool for drilling holes with a chamber, in particular in walls made of concrete, plaster or similar material
Process and tool for drilling holes with a chamber, in particular in walls made of concrete, plaster or similar material
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机译:用腔室钻孔的方法和工具,特别是在混凝土,灰泥或类似材料制成的墙壁上
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摘要
Tool for drilling a hole with a chamber, comprising, at the end of an elongated body C, a pivoting blade L having a cutting edge and a non-cutting cam profile interacting with a ball B placed at the bottom of the hole. IMAGE
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