Hex shank drill bit is suitable for quick replacement, suitable for most power tools, the cutting edge is hardened and honed for sharpness. Easy to UseA chatter-free,five-flute designed with staggered cutting teeth arranged to insure free chip flow and rapid chatter free cutting,reduces vibration for smoother drilling SuitablePerfect for wood openings, reams, chamfers, screw heads, etc. Suitable for chamfering of various soft materials such as wood board, aluminum board, plywood, plastic, PVC board, etc. [Not suitable for metals] Delivery Quantity: 6pcs, (Package contents: Only the above package contents, excluding other products.) Size: The detailed size is shown in the picture (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: Gold (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)