- tap drills
- • свредло за предварително пробиване на отвор за нарязване на резба
English-Bulgarian polytechnical dictionary . 2013.
tap drills
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Tap Rack Bang — Tap, rack, bang (TRB) is jargon for the emergency corrective procedure for a semi automatic firearm or an automatic firearm after a failure to fire ( stoppage ), which usually gives an audible click as the firing mechanism fails to fire a round.… … Wikipedia
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Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… … Wikipedia
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