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Xray Carbide Ball 2.4mm for Ball Differential for M18 T2 T3 T4 #XR-930120
Carbide balls 2.4mm for ball differential. Improved, smoother diff operation over standard steel diff balls. These carbide balls are much harder than the diff washers (over 15HRc more hardened) to ensure the surface of the diff ball will always stay round. Set of 12 pieces is enough for one ball differential.