sourcing map 12pcs Micro Jobber Twist Drill Bits #78 0.4mm / 0.0157" High Speed Steel HSS Mini Drilling Bit Tool for Stainless Steel Aluminum Wood Plastic

• Size - Crafted with a drilling diameter of 0.4mm (0.0157"), matching round shank diameter for steady handling, and an efficient drilling depth of 5mm (0.2"). The compact total length measures 19mm (0.75"), ensuring accessibility in small spaces.
• Material - Made from 6542 HSS steel, the micro metal drill bit set has durability with enhanced hardness and strength. Created for high-temperature operations, it resists wear and ensures high performance. Its sleek finish minimizes friction, thereby ensures quicker and smoother drilling tasks.
• Features - The straightforward shank ensures easy chucking into standard drill machines, providing a secure fit for accurate drilling operations without slippage. Precision cutting edging penetrates quickly with less pressure, providing optimal chip removal.
• Applications - The twist drill bit set with straight shank is specifically designed for high-performance drilling tasks, suitable for a wide range of materials, including hard metal, steel, cast iron, wood and plastic. NOT for tiles, concrete, walls, stones.
• Note - Ensure the jobber drill bit is appropriate for the material you're drilling into. Apply lubricant, such as cutting oil or coolant, especially when drilling metal which reduces friction, heat, and prolongs the bit's life.

HSS micro twist drill bits with straight shank are specifically designed for high-performance drilling tasks. The HSS 6542 material features high hardness, high strength, heat resistance, wear resistance, and ensuring long-lasting performance. Also 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.