HARFINGTON 10pcs Cobalt Jobber Drill Bits 4.2mm / 0.165" M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials

Key features

• Size - Drilling diameter: 4.2mm (0.165"); round shank diameter: 4.2mm (0.165"); drilling depth: 43mm (1.69"); total length: 75mm (2.95").
• Material - Drill bit set for metal is constructed of M35 high speed steel material, featuring high hardness, high strength, heat resistance, wear resistance, and ensuring long-lasting performance. The smooth surface also reduces friction, ensuring faster drilling processes.
• 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 - M35 cobalt 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.

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