CoCud Twist Drill Bits, 1mm Drilling Diameter, Black Oxide High Speed Steel Extra Long Straight Shank - (Applications: for Stainless Steel Alloy Metal), 6-Pieces

• ★ Twist Drill Bit Size --- Drilling diameter: 1mm / 0.04"; tool flute length: 33mm / 1.3"; shank diameter: 1mm / 0.04"; overall length: 60mm / 2.36"; tool flute type: spiral; hardness: HRC63-66; processing technology: fully ground & rolling
• ★ Wide Applications --- Suitable for drilling stainless steel, aluminum alloy, iron, copper, brass, hard wood, hard plastic, and other metal materials in maintenance departments, machine shops, and other industries. Use on drill presses and bench drills.
• ★ Spiral Flutes --- Sharp spiral flutes provide fast, neat and smooth cuts. The spiral grooves facilitate the export of metal chips, which saves time and effort in operation.
• ★ High Speed Steel --- The straight shank drill is made of high-speed steel 6542, with high hardness, good toughness, high strength, and wear resistance. Black oxide treatment improves hardness, rust resistance and wear resistance.
• ★ Useful Tips --- Selecting the correct lubricant can facilitate cutting or cooling. Keep cool and gentle when using. When using a hand drill, the recommended working speed is 100-1000r/min. Proper use can greatly extend the working life of twist drill bits.

Attributes: * Drilling Diameter: 1mm / 0.04" * Tool Flute Length: 33mm / 1.3" * Shank Diameter: 1mm / 0.04" * Overall Length: 60mm / 2.36" (Extra Long) * Material: High Speed Steel 6542 (HSS M2) * Finish: Black Oxide * Shank Type: Round Shank * Tool Flute Type: Spiral * Hardness: HRC63-66 * Type: N Type 120 Degree * Processing Technology: Fully Ground & Rolling What Is Included: * 6 Pieces x Twist Drill Bits Applications & Features: --- Suitable for drilling stainless steel, aluminum alloy, iron, copper, brass, hard wood, hard plastic, and other metal materials in maintenance departments, machine shops, and other industries. Used on drill presses and bench drills. Selecting the correct lubricant can facilitate cutting or cooling, making cutting easier, improving dimensional accuracy and extending tool life. --- The straight shank twist drill is made of high-speed steel 6542, with high hardness, good toughness, high strength, and wear resistance. Black oxide treatment improves hardness, rust resistance and wear resistance. Sharp spiral flutes provide fast, neat and smooth cuts. The spiral groove facilitates the export of metal chips, which saves time and effort in operation. Useful Tips: --- Keep cool and gentle when using. When using a hand drill, pay attention to the speed adjustment. The recommended working speed is 100-1000r/min. Proper use can greatly extend the working life of twist drill bits. Drill metal with high hardness, the rotational speed should be slower than normal drilling. If there is a problem with chip evacuation, go back in time and remove the chips.