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Diamond Thin-Tube Drilling Bits Specially for Highway Test Sampling item ID: CBHT

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Size of drill bit outer diameter(mm) 25 37.5 52 60 64 79.5 85 92.5 110 118 160 210
Size of drill bit inner diameter(mm) 17 28.5 42 50 54 70 75 82.5 100 108 150 200

update: Jun. 16, 2009


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