Hyjoy Cobalt Number Size Drill Bit Set 1-60, 60Pcs M35 -Speed Steel Jobber Length Drill Bit Kit for Steel Hard Metal and Cast Iron

Multiple Size Options: Includes 60 sets of numbered drill bits from size to #60, with diameters ranging from 0.228" to 0.040" (5.79mm to 1.02mm), designed to address broad of requirements. M35 Cobalt Drill Bit: Made from M35 cobalt, this drill bit is known for its toughness, sharpness, and strength. It performs in through steel, iron castings, copper, aluminum, and other soft metals, as as plastics and wood, making it versatile for many uses. Efficient and Quick: The cobalt drill bit set 135-degree point tip and design, allowing it to perform effectively both soft and hard materials. Its self-centering capability prevents wandering and enables faster removal of chips and debris, ensuring speedier and smoother operations. HSS Drill Bit Set: HSS cobalt drill bit set for hardened steel with enhanced durability. 13 sets of drill bits for extended use. The inserts are hardened and polished for sharpness and precise without wobbling Friendly Reminder: It is important to maintain vertical angle before starting the process to the drill bit aligns correctly with the corresponding hole. If you have trouble removing the drill bit, it might be stuck in the protective sponge underneath. In such instances, try repositioning it vertically few times before gently pulling it out to any possible damage.