ball-peen hammer
C2Technical / Trade
Definition
Meaning
A type of hammer with one flat face and one rounded, hemispherical face (the peen).
Primarily a metalworking tool used for striking punches and chisels, shaping metal, and riveting (the rounded face is for shaping metal and closing rivets without marring the surface).
Linguistics
Semantic Notes
The term is almost exclusively used within metalworking, blacksmithing, and mechanical trades. 'Peen' refers to the shaped end of a hammer head opposite the face. Also known as 'engineer's hammer'.
Dialectal Variation
British vs American Usage
Differences
The spelling 'peen' is standard in both. British English may sometimes use the spelling 'ball-pane hammer', but 'ball-peen' is far more common globally.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low-frequency in both dialects, confined to specialist contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
Use [a ball-peen hammer] to [verb] metal.Strike [the chisel] with [a ball-peen hammer].Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Extremely rare; only in industrial supply or tool manufacturing contexts.
Academic
Used in engineering, metallurgy, or vocational training materials.
Everyday
Virtually never used in casual conversation.
Technical
Standard, precise term in metalworking, machining, blacksmithing, and automotive repair.
Examples
By Part of Speech
verb
British English
- He needed to ball-peen the edge of the copper sheet.
American English
- She ball-peened the rivet to secure the metal plate.
adjective
British English
- The ball-peen hammer technique is essential for this task.
American English
- He reached for his ball-peen hammer set.
Examples
By CEFR Level
- The mechanic used a special hammer with a round end.
- For metalwork, you'll need a ball-peen hammer to shape the rivets correctly.
- The jeweller selected a small ball-peen hammer to texture the silver without piercing it, exploiting the peen's convex surface for controlled plasticity.
Learning
Memory Aids
Mnemonic
Imagine a BALLerina PEEring at a HAMMER. She notices one side is flat, the other is round like a ball - that's the 'peen'.
Conceptual Metaphor
TOOL FOR PRECISE DEFORMATION (The rounded peen is a tool for controlled shaping, not just brute force).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'шарообразный молоток'. The standard term is 'молоток с круглым бойком' or 'сферический молоток'.
- Do not confuse with 'кувалда' (sledgehammer) or 'молот' (general hammer). 'Ball-peen' is specific.
Common Mistakes
- Misspelling: 'ball-pein', 'ball-pene', 'ball-pean'.
- Confusing it with a 'claw hammer' (used for nails).
- Using it as a generic term for any hammer.
Practice
Quiz
What is the primary function of the ball-peen (rounded end) of this hammer?
FAQ
Frequently Asked Questions
It is not designed for that purpose. The rounded peen can damage the nail head and wood. Use a claw hammer for nails.
A cross-peen has a wedge-shaped peen, used for starting a taper or spreading metal in one direction. A ball-peen has a spherical peen for multidirectional shaping and riveting.
Yes, 'ball-peen' is the standard, most common spelling. 'Ball pein' and 'ball pane' are older or variant spellings.
Primarily metals (steel, copper, silver, etc.) for shaping, riveting, and striking other metal tools like chisels or punches.