amoolo Countersink Drill Bit Set, 10 Pcs Adjustable Woodworking Chamfer Countersink Bit for Wood, Plastic, Plywood, PVC with Hex Key Wrench(3mm-19mm)

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Product Features

?SATISFY ALL YOU NEEDS? A set of 7 countersink drill bit combinations, sized for #3, #4, #5, #6, #7, #8 and #10mm screws; 3 countersink with popular size #12, #16,#19mm and 1 free hex wrench. Drill, Countersink and Counter-bore hole in one step! ?PREMIUM QUALITY?The countersink drill bit set are made of industrial grade high-carbon steel, which provides hardness, superior cutting power and durability ?EFFICIENT DESIGN?#3-#10 drill has tricuspid point + round shank while #12-#19 has 90°on the point + 1/4" hex shank for rapid, precise countersinking and quick change,tight clamped ; Both have chatter-free,5-edged chamfer cutter for easy chip removing and their cutting edge are hardened and honed for sharpness ?REMOVABLE& ADJUSTABLE?The drilling depth of #3-#10 drill is adjustable for screws of various lengths; Meanwhile, their bits are removable for easy cleaning, sharpening,and replacement. ?MULTIPLE APPLICATION? Perfect for Wooden planks, Fiberboard, Particle board, Plywood, Plastic, PVC and soft metals. Suitable for hand drill, bench drill and electric drill, #12-#19 are especially fine for quick drill. × NOT for hard metals or steel board

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