amoolo 3/8" Cobalt Drill Bit(5Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron

Amoolo M35 Cobalt Twist Drill Bits 3/8" 5 Pcs Specifications ● Material:High-Speed Steel M35 Cobalt (5% Cobalt) ● Size:3/8”(Dia 9.26mm) x3-5/8”(Flute Length 92.08 mm) ● Split Point: 135° ● Process: Fully Ground ● Flute Type: Spiral ● Shank Type: Straight Round Shank ● Applications: Perfectly suitable for Hard Metals, such as Stainless Steel and Cast Iron What is M35 Cobalt? ● The addition of 5% cobalt increases drill bit’s heat and wear resistance, which makes it perfectly suitable for Stainless Steel and Cast Iron. M35 Cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds. ● While the 5% cobalt makes the bits much more durable,it also makes them more brittle than ordinary HSS bits under improper usage. How to use this Drill Bit? Here are some warm tips ● Keep the bit vertical and fixation while drilling. ● To avoid drill bit break, 1/16” or smaller bits are suggested used with pin vise. ● Pay attention to the cooling of the bit, adding water or coolant when drilling can increase the life of the bit. Warranty: 90 Days No worries! Your satisfaction is our ultimate goal. If you have any questions or concerns about our products, please do not hesitate to contact our customer service team support@amoolo.com, we will respond within 12 hours. Why choose Amoolo? Amoolo - Craft the future! Amoolo is ONE STOP SHOP for ALL TOOL ACCESSORIES. We have years of OEM experience for international well-known brands. We are committed to providing the best quality products at a affordable price. Amoolo is always by your side to craft your desk, living room, home even the future!