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Helical conical drill bits with 2 blade (Helical Reamer) are customized as per the customer's drawing(∮5.8*70*∮7.2*10*D8*110L) . They are the unique Helical Reamer for Relief hole on the ring die.
Helical conical drill bits with 2 blade (Helical Reamer) are customized as per the customer's drawing(∮5.8*70*∮7.2*10*D8*110L) . They are the unique Helical Reamer for Relief hole on the ring die.
