Grade: 25
Material: Chrome Steel (AISI 52100)
Diameter: 2-1/2", 2.5" inches (63.5 millimeter)
Weight: 37.1 ounces (1.052 grams)
PGN’s G25 2-1/2" Chrome Steel Balls extremely precise and smooth surface guarantees you won't find any defects, such as flats, pits, soft spots, and cuts.