With special heat treated head with a hard core and a soft striking face to avoid fractures or chipping
Unbreakable rubber handle reinforced with a high carbon steel spring rod
Hard core safeguards head to the handle
ANSI/HTI B173-1991, ASTM A576 (head), ASTM A421 (handle)
Convex (domed) striking face
Strengths
Soft striking face avoids fractures or chipping|Hard core safeguards head to the handle