1、SMOOTH CHIP REMOVAL: Spiral chip removal design, bring smooth chip removal. Smooth and of sharpness grooves support fast cutting and high drilling efficiency 2、HIGH HARDNESS AND STABLE PERFORMANCE: High quality high speed steel material, possess high hardness, stable performance, of sharpness and durable 3、FAST AND ACCURATE DRILLING: 118° acute angle design, bring fast and accurate drilling, saving time and effort, suitable for processing non ferrous metals 4、FINELY SHARPENED: The cutting edge is finely sharpened to meet different cutting accuracy, with high work efficiency 5、CONVENIENT TO CARRY: A total of 10pcs extra long twist drill bits will meet your using needs, convenient to carry, you can take or use at anytime 10 x Extra Long Twist Drill Bits Item Type: Extra Long Twist Drill BitsProduct Material: High speed steelProduct Length: Approx. 200mm / 7.87inProduct Diameter: Approx. 2.5mm / 0.1inProduct Quantity: 10PcsScope of Application: Suitable for processing non ferrous metals