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Electric drill attachments for correct hole alignment - has spirit levels for vertical and horizontal positioning and set square to maintain orientation w.r.t. work surface
Electric drill attachments for correct hole alignment - has spirit levels for vertical and horizontal positioning and set square to maintain orientation w.r.t. work surface
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机译:电钻附件可正确对准孔-具有水平和垂直定位的水平仪,并设置直角以保持方向正确工作台
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摘要
Attachments are fitted to an electric drill to ensure that holes are drilled at a correct angle to the surface to be drilled. At the rear of the drill is mounted a spirit level to give the horizontal alignment. Immediately behind is a circular spirit level for vertical alignment. On the front of the drill is mounted a telescopic set square to give right angles. A cursor marked in degrees can be used to give intermediate angles.
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