diameter M7 M7.5 M8 M8.5 M9-45MM Iron Balls No Quenching Steel Ball Solid Ball

Description

Iron Balls No Quenching Steel Ball Solid Ball Diameter M7 M7.5 M8  M8.5 M9-45mm
Model: Solid Iron Ball
Material: Iron
Surface Treatment: No Quenching  （Not Heat Treated）
Tolerance: ±0.05mm
Diameter: 7mm-45mm
Low Hardness, Smooth and Shiny Surface, Suitable for Drilling, Process Welding, Castings, Teaching Experiments, Etc.
Special Reminder: the Iron Ball Is Not Rust-proof, and the Environment Should Be Kept Dry! If You Need a Good Anti-rust, You Can Choose Stainless Steel.
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