hand drilling मीनिंग इन हिंदी

उदाहरण वाक्य

1. By eliminating hand drilling, Spot also eliminates a health risk for employees.
2. As a result of this hand drilling operations were resorted to.
3. Previously, hand drilling of such a hole took around ten hours, and the new process created no dust.
4. Ball-peen hammers of appropriate size or hand drilling hammers should be used to strike chisels, punches and star drills.
5. Downey also teaches the fine points of hand drilling, a task she has mastered and which still represents around 10 percent of Midwest's annual output.
6. Drilled wells can be excavated by simple hand drilling methods ( augering, sludging, jetting, driving, hand percussion ) or machine drilling ( rotary, percussion, down the hole hammer ).
7. Through solid granite, the summit tunnel progressed at a rate of only about per day per face as it was being worked by three eight-hour shifts of workers, hand drilling holes with a rock drill and hammer, filling them with black powder and trying to blast the granite loose.
8. The basic method will work only in loose ( clay, silt, sand and light gravel ) soils, but adaptations of the principle are applied in a number of modern hand drilling methods, with valves either at the top or at the bottom of the pipe and with various models of drill bits for different soil conditions.
9. As a January 2004 " Sound on Sound " article stated : " Currently under the technical supervision of Kuehnast's son, Microtech Gefell still produces the M7 capsule in exactly the same way Georg Neumann taught the elder Kuehnast in the 1940s  hand drilling each hole in the backplate, making the PVC membrane, and gluing it all together by hand just as Neumann specified !"