1PCS 15.6mm 15.7mm 15.8mm 15.9mm 16mm HSS Reduced Straight Crank Twist Drill Bit Shank Dia 12.7mm 1/2 Inch 15.6 15.7 15.8 15.9 16(15.7mm)

High-precision size options: HSS HSS drills in 15.6mm, 15.7mm, 15.8mm, 15.9mm, 16mm sizes are available to meet different precision drilling needs for a wide range of materials, such as metal, wood and plastic. EFFICIENT MATERIAL: Made of high quality HSS (High Speed Steel) with excellent wear resistance and hardness, ensuring that they remain sharp even after long time use, improving drilling efficiency and extending tool life. 12.7mm (1/2 inch) Straight Shank Design: Drill shank diameter of 12.7mm (1/2 inch), compatible with most standard drill chucks, easy to install and stable, suitable for high-intensity work. Reduced Shank Design: reduced shank design reduces friction and vibration and ensures a smoother drilling process, especially suitable for deep hole machining, enhancing work precision. Multifunctional application scenarios: suitable for DIY enthusiasts, professional craftsmen and industrial use, widely used in metal processing, carpentry, machinery maintenance and other fields, it is an indispensable and efficient tool in the toolbox.