Definition

1. Noun:
   • The part of a hammerhead opposite the flat striking surface, which is typically shaped for a specific purpose, such as rounding, shaping, or texturing metal.

Usage

• The peen is used for metalworking tasks like riveting, shaping, or peening (the process of hardening or smoothing a metal surface by hammering with the peen).
• It is the functional end of a hammer designed for purposes other than delivering a flat blow.

Examples

• Noun:
  • Use the ball-peen hammer to shape the metal.
  • The cross-peen is ideal for starting nails.
  • The mechanic selected a hammer with a rounded peen for the job.

Advanced Usage

• "to peen" (verb): The act of striking or working metal with the peen of a hammer.
  • The blacksmith will peen the edge of the blade to strengthen it.

Variants and Related Words

• Ball-peen (or ball-pein) hammer: A hammer with one flat face and one rounded, ball-shaped peen.
• Cross-peen hammer: A hammer with a wedge-shaped peen perpendicular to the handle.
• Straight-peen hammer: A hammer with a wedge-shaped peen parallel to the handle.
• Peening (n): The process or result of hammering with a peen.

Synonyms

• Hammerhead (specifically the non-striking end).
• Face (when referring to the specific working surface of the hammerhead).

Related Phrases

• Peen over: To bend or flatten a material (like the end of a rivet) by hammering with the peen.
  • After inserting the rivet, you must peen over the end to secure it.

Noun

1. the part of a hammerhead opposite the flat striking surface (may have various shapes)