sourcing map 10pcs Cobalt Jobber Drill Bits 3.9mm / 0.154" M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and other Hard Materials

About this item

• •M35 twist drill bits with straight shank are specifically designed for high-performance drilling tasks. The M35 material features high hardness, high strength, heat resistance, wear resistance, and ensuring long-lasting performance.
• •The cobalt addition improves the bit's ability to withstand high drilling temperatures, preventing premature dull and ensuring efficient performance during prolonged use.
• •These high speed steel drill bits are good for drilling through harder metals, stainless steel, cast iron, and other tough materials, ensuring precise, clean holes, thereby enhancing productivity in various industrial applications.
• •Use the correct drill speed setting. Generally, harder materials require slower speeds to prevent overheating and bit damaging.
• •Apply lubricant, such as cutting oil or coolant, especially when drilling metal. This reduces friction, heat, and prolongs the bit's life.

Specifications