1PCS 21.1mm 21.2mm 21.3mm 21.4mm 21.5mm HSS Reduced Straight Crank Twist Drill Bit Shank Dia 12.7mm 1/2 Inch 21.1 21.2 21.3 21.4 21.5(21.2mm)

HIGH PRECISION DRILLING: This HSS (High Speed Steel) Reduced Shank Straight Shank Twist Drill Bits are available in a wide range of sizes 21.1mm, 21.2mm, 21.3mm, 21.4mm and 21.5mm, suitable for engineering and DIY projects that require high-precision drilling to ensure the desired results every time. MATERIAL: Made of high-quality high-speed steel (HSS) with excellent wear and heat resistance, which prolongs the life of the drill bit and keeps it sharp even under high-intensity work. Reduced Diameter Design: The drill is designed with a reduced diameter shank of 12.7mm (1/2 inch), which fits standard drill chucks and provides better stability and control, reducing vibration and deflection when drilling. WIDE APPLICABILITY: Suitable for drilling holes in metal, wood, plastic and other materials, it is an ideal tool for home repair, woodworking, metal processing and other fields to meet diversified drilling needs. MULTIPLE SIZE CHOICE: Available in five sizes, 21.1mm, 21.2mm, 21.3mm, 21.4mm and 21.5mm, to meet different hole size needs, it is a must-have tool for professional craftsmen and DIY enthusiasts.