SIFFOI 2PCS Tungsten YG8 Carbide Chamfer Set, Professional External Burr Removal Deburring Drill Bit, Fits for 1/8"-3/4" Solid & 3/16"-1" with Chip Discharge Notch, Quick-Release 1/4" Hex Shank
YUEARN Deburring External Chamfer Tool with Tungsten Carbide Blade, Remove Burrs for Copper Steel Aluminum, Deburring Drill Bit Bolt Thread Repair Tool with Quick Release 1/4" Hex Shank (1/8"-3/4")