Countersink Drill Bit, APLUS Bit Set 6 Pcs 1/4'' Hex Shank HSS 5 Flute 90 Degree Center Punch Tool Sets For Wood Quick Change 6mm 19mm

Material - High Speed Steels; Size - 6mm(1/4''), 8mm(5/16''), 9mm(3/8''), 12mm(1/2''), 16mm(5/8''), 19mm(3/4'') Application - Great for Sinking 90 Degree Holes into Wood and Soft Metals Countersunk Screws and Fixings A Chatter-Free,five-flute designed with staggered cutting teeth aranged to insure free chip flow and rapid chatter free cutting Suitable for - Ideal for Wooden planks,Fiberboard,Particle board,Plywood,Plastic,Alumiumn Board ,Pcb Board etc 1/4″ hex shank countersinks are fine for a quick drill. They don’t slip in drill chucks