Description Are you looking for a professional, affordable countersink drill bit? Are you in search of a sturdy, tool that can do multiple works at once? If yes, look no further! Our professional countersink drill bit must meet you needs. one of the best choices for you. Features - Color: Orange. - Material: Steel. - Size: 2. 8x8mm/ 3. 0x8mm/ 3. 2x8mm/ 3. 5x8mm/ 4x8mm/ 0. 11x0. 31 inch/ 0. 12x0. 31inch/ 0. 13x0. 31 inch/ 0. 14x0. 31 inch/ 0. 16x0. 31 inch. - Diameter of stem: 8mm/ 0. 31 inch. - Easy to grasp and use, safe and reliable. steel blades, fast drilling, cutting more smoothly. - Centerless grinding technology, handle diameter smooth stiffness. - Widely used suitable for DIY, home and general building or engineering using, etc. - Three pointed design: Quickly and accurately drill a smooth hole. Better in centering and no skid. - Five- edged chamfer design will fast discharge chips from the hole on both sides automatically. Package Including 5 x drill bits n5 x wrenches