COMOWARE Spiral Pcs Spiral Drill Bits Titanium Automatic Review

HSS TITANIUM COATING: High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler. SPIRAL FLUTE DESIGN: The Spiral-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly without heating up. The split point tip is at 118 degrees to increase the wear resistance. WIDELY APPLICATION: With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble. Great for plastic/ wood/ plank/ soft rubber with low hardness countersunk. Suitable for Home DIY, and General Building/ Engineering Use. 50 SIZES IN 5: Our bits set includes five standard step drill bits that are capable to drill 50 holes with different diameters, saving you time and efforts; to make your holes more accurate, please do use a center punch to locate before drilling. EASY STORAGE & LIFETIME GUARANTEE: Set includes the drill bit holder for easy storage and organizing. We only care about your satisfaction. We stand behind all of our high quality products so we offer a No Question Asked on our Drill Bit Set. Please contact us (through Amazon if past the standard return window) and we will be pleased to assist you.