Features Precision Metric Unit Scale: Designed with a clear metric unit scale for easy and accurate readings, ensuring perfect hole placements every time Durable Aluminum Alloy Construction: Crafted from high-quality Features: 1、GOOD CUTTING HARDN AND SPEED: Twist drill bits are made of good quality HSS materials with fully ground to ensure cutting hardn and speed 2、HIGH TEMPERATURE AND WEAR RESISTANT: Twist drill bit set adopt vacuum quenching and full grinding proc, come with high temperature resistance and wear resistance 3、ACCURATE POSITIONING: The cutting edge is proced by 135 degree double back angle proc, and the positioning is accurate 4、1.5-6.5MM SHANK DIAMETER: There are 13 different specifications of shank diameter, including 1.5-6.5mm, which will meet your different using needs 5、FOR WOOD METAL CUTTING: The top angle of the outer blade is 135°, which is specially used for woodworking and metal procing. Equipped with iron box packaging, easy to carry Specification: Item Type: Twist Drill Bits Type: Round Shank Diameter: Approx. 1.5mm / 0.06in 2mm / 0.08in 2.5mm / 0.1in m / 0.12in 3.2mm / 0.13in 3.5mm / 0.14in 4mm / 0.16in 4.5mm / 0.18in 4.8mm / 0.19in 5mm / 0.2in 5.5mm / 0.22in 6mm / 0.24in 6.5mm / 0.26in Outer Edge Angle: 135° Packing: Iron box Product Use: Specially used in woodworking and metalworking Package List: 13 x Twist Drill Bits 1 x Iron Box Package List 13 x Twist Drill Bits 1 x Iron Box