Features:
These steel balls are made of high quality Gcr15 bearing steel for pressure and abrasion . Excellent surface quality, high hardness and high load bearing capacity.
Steel ball diameter is 6.35mm(1/4inch), and the tolerance is ±0.002mm.
There are total 200 pieces in one set that you may use for many projects.
Mainly used for industrial products such as hardware tools, electrical appliances, casters, bearings, etc.

Specifications:
Material: Bearing steel Gcr15
Diameter: 6.35mm(1/4")
Grade: G10
Hardness: HRC65
Tolerance: ±0.002mm
Quantity: 200pcs

Package Includes:
200 x Steel Balls