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Link Industries - 0.2″ Drill, 5/16″ Pilot Length, High Speed Steel Bright Finish Combo Drill & Counterbore - 56443963 - MSC Industrial Supply
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750 3/4 Diameter Carbide Counterbore, 1/4 Pilot Drill Size (Drill and counterbore in 1 operation for woods, plastics, and non ferrous material) - ID: 6646-CB4
CLEVELAND 1/2 x 3/4 HSS STEP / COUNTERBORE DRILL BIT 131285 MORSE TAPER #3 - MB8888AZ2 - M & J Tooling LLC
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Amazon.com: 5pcs Counterbore Drill Bits Set, 4 Flutes Straight End Mill Cutter HSS Countersink Slot End Mill Cutter M3-M8 for Copper Aluminum Cast Iron : Industrial & Scientific
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