NORTOOLS Drill Bit Sets 19 PCS M35 Cobalt 5% DIN338 Hss-G Metal Drill Set for Stainless Steel Alloy Steel 1.0-10mm x 0.5mm

** NORTOOLS Drill Bit Sets** The NORTOOLS Drill Bit Set, comprising 19 pieces of M35 cobalt drill bits, is crafted specifically for drilling hard materials like stainless steel and alloy steel. Users have generally praised the sharpness and effectiveness of these bits, particularly in situations requiring precision drilling. Many have found that the bits perform exceptionally well when used correctly, allowing for effortless drilling into challenging metals such as 316 stainless and aluminum alloys. However, there are some concerns regarding the brittleness of these bits, attributed to the 5% cobalt content. While this composition enhances the bits' sharpness and durability, it also makes them prone to breaking if not used with care. Users are advised to avoid forcing the drill bits into the material; instead, they should allow the drill to operate at its intended pace, ideally with coolant or lubrication to reduce friction. Despite some issues with the tightness of the bit slots in the case, which has led to reported finger injuries when removing the bits, the quality of the drill bits themselves seems to outweigh these drawbacks. A suggestion to use a cloth to grip the bits for extraction has been offered to mitigate the risk of injury. Additionally, while the case is sturdy, a metal option might improve durability further. Overall, while the NORTOOLS Drill Bit Set excels in sharpness and efficiency for metalworking, users need to handle the bits with care to maximize their lifespan and avoid mishaps. **