10Pcs/lot Super Hard A-type HSS Center Drill 1mm 2mm 3mm 4mm 5mm Positioning Bit Fully Ground Center Drill Bit 2 3 4

10Pcs/lot Super Hard A-type HSS Center Drill 1mm 2mm 3mm 4mm 5mm Positioning Bit Fully Ground Center Drill Bit 2 3 4

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