Heyu-Lotus 6 Pcs Countersink Drill Bits Set, High Speed Steel Counter Sinker Drill Bits 5 Flute 90 Degree Titanium Coated Center Punch Tool Quick Change Bit 6mm-19mm for Wood
Including 6 different size drill bits, 6 mm (1/4"), 8 mm (5/16"), 9 mm (3/8"), 12 mm (1/2") , 16 mm (5/8"), 19 mm (3/4'')