Drilling tool (5,3,3)
I believe the answer is:
brace and bit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">drilling tool</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for brace and bit that I've seen before include "Boring tool" , "Tool with a drilling part attached" , "One might bore" , "Hand tool for drilling" .)