Vulcan BP24H Ball Pein Hammer, 24 Oz HeadBall pein hammer, also known as a machinist's hammer, is a type of peining hammer used in metalworking. This particular hammer features a wood handle. Highlights: Handle Material: Wood Head Weight: 24 oz Type: Ball Pein WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www. P65Warnings. ca. gov