HSS Straight Shank Twist Drill Bit Set In Steel Case (1-5.9mm/ 50pcs)

HSS Straight Shank Twist Drill Bit Set In Steel Case (1-5.9mm/ 50pcs)

• Material: High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
• Size-The set includes 50 pcs of HSS twist drill bits, 1mm to 5.9 mm by 0.1 mm. 
• Straight Shank: The fully ground spiral groove design can quickly remove particles, reduce friction and heat, and improve drilling performance. The 135° split point has a straight shank for precise drilling
• Applicable Machine: Can be used with machining equipment, hand drill, and rechargeable drill. The material with high hardness needs to be added with water while drilling. The effect of adding water is better and the service life can be extended
• Versatile Uses: For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass and metal materials

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