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φ3 Ultra High Grade Differential Ball (for Tamiya)12 pcs.
ITEM NO. TGE-212A
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Product details
Made from bearing steel, a highly wear-resistant high-carbon chromium steel, SUJ-2 under JIS G480. Only balls with excellent sphericity are selected, using Grade 3, effectively the highest available grade. Balls normally supplied in kits are approximately Grades 15 to 20.