One Loose 5mm Tungsten Carbide Ball Bearings Balls are made of tungsten carbide Balls size is 5mm Grade is G25 And it meets grade 25 sphere tolerancem Loose Ball is extremely hard alloy made from tungsten and carbon And it is high corrosion wear resistance.

• Item: 5mm Loose Balls
• Size: 5mm
• Grade: G25
• Hardness: 90 Rockwell
• Sphericity: 0.000025"
• Material: Tungsten Carbide
• Pack#5MMTUNGSTENBALLS
• Quantity: One Loose Balls