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roller bit

roller bit

8.4
A drill part with hard turning wheels that cut through rock
  • noun
  • /ˈroʊlər bɪt/
  • Specialized
translation icon : broca de rodillos
  • A roller bit can efficiently crush and cut through the hardest layers of rock.

Examples

  • The oil company upgraded its equipment to include a roller bit for deeper drilling.

  • You should replace the roller bit if it shows signs of wear.

  • Engineers selected a Tricone roller bit to speed up the well-drilling process.

  • The roller bit is essential for drilling through tough rock.

  • A roller bit is designed to break apart solid rock while maintaining its durability.

  • Using a roller bit, the team was able to drill through granite much faster than expected.

  • The engineer explained how a roller bit works to penetrate the earth's crust effectively.

Synonyms

bit
vsroller bit
40 6.5

The cutting part of a drill that makes holes

is more specific referring to a cylinder tool for hard stone cutting
drill bit
vsroller bit
  • Specialized
11 3.7

A metal tool that makes holes in hard materials like rock or wood when attached to a drill

is narrower naming a cylinder style made for hard stone cutting
rock bit
vsroller bit
  • Specialized
7.3

A drill part with hard rollers that cut through rock

is the same tool with identical cylinders and stone cutting use
drilling bit
vsroller bit
  • Specialized
4.4

A tool fixed to a machine that cuts rock and earth to make a hole for oil

is more specialized using rotating cylinders for hard stone cutting
bore bit
vsroller bit
  • Specialized
8.1

A tool for a drill that cuts into rock or other hard material

is more specific about cylinder design for hard stone cutting

How Tough

roller bit
  • Specialized
8.4
drill bit
  • Specialized
11 3.7

Surface Forms

roller bit singular
roller bits plural

Morphology

roller + bit

The meaning 'a drill bit that has rollers' is directly and transparently derivable from combining 'roller' (a cylinder that rolls) with 'bit' (the cutting part of a drill). This straightforward noun–noun compounding follows common English (and cross‑linguistic) composition patterns, so a B1 learner who knows both words can readily infer the MWE's meaning.

Etymology

Roller bit is a drill head with hard metal rollers like small wheels that spin and crush rock as the bit turns. So, the name shows it is a 'drill bit' that uses rolling parts to cut through hard rock.