🔩 Automatic Spring Plastic Countersink Pieces Review

Package includes: there are 3 pieces of step drill bits, 6 pieces of 5 flute countersink drill bits and 1 piece of center punch in the package; Sufficient quantity and type are enough to meet your various needs, and you are able to share with your friends who need these home improvement accessories. Step drill bit set: design in various sizes, 4-12 mm, 3-12 mm, 4-20 mm, they are made of high speed steel, coated by titanium, these step drills are resistant to heat, corrosion and rust, practical and durable. Countersink drill bits set: made of quality carbon steel, the surface of the countersunk drill bits is plated with titanium to prevent rust; It is durable for you to use and can serve you for a long time; They are suitable for quick replacement and suitable for most power tools with the 1/4 inches hex shank, the cutting edge is hardened and polished to improve sharpness, all drill bits have a 90 degree angle at this point, allowing peaked and precise counter sinking. Automatic center punch: automatic center punch is so effective that you are able to mark workpiece with a dimple to prevent screws and drills from wandering, helping you complete work accurately and quickly, save your time and energy. Wide application: very suitable for drilling, reaming, chamfering, screw heads, etc.; Suitable for chamfering various types of materials such as wood, plywood, aluminum, iron, copper, fiberboard, particle board, plastic, PVC board, etc.