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Diamond Drill Core Bit 1 1/4 UNC Item Number Size Segment Size Teeth Number BY-S001 25×300/350/400/450×1 1/4UNC 15×3.5×8 R2 (R16) 4 BY-S002 32×300/350/400/450×1 1/4UNC 15×3.5×8 R2 (R16) 4 BY-S003 42...