Dance practice, boring kit (5,5)

I believe the answer is:

twist drill

I'm a little stuck... Click here to teach me more about this clue!

'boring kit' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'dance practice' is the wordplay.
'dance' becomes 'twist' (type of dance).
'practice' becomes 'drill' (synonyms).
'twist'+'drill'='TWIST DRILL'

Can you help me to learn more?

(Another definition for twist drill that I've seen is " Tool for making holes in metal".)

I've seen this clue in The Independent.

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