BEIJIYI 13 HSS twist drill bits (1.5-6.5 mm) with hexagonal shank and titanium nitride coating

13-Piece Twist Drill Bit Set - Suitable for drilling wood, plastic, and metal (thin aluminum sheets or thin iron). Not suitable for masonry, stainless steel, etc. 13-Piece Drill Bit Set Diameters - 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 4.8mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm. 6.35mm Hex Handle - Quickly and safely change drill bits. Compatible with bench drills, ordinary handheld electric drills, or other standard drill chucks. Even Drilling: Designed with a 45° outer edge angle, which can improve processing performance when drilling the workpiece material. Threaded chip flutes can remove chips and debris faster. MATERIAL: The twist drill bits are made of titanium-coated high-speed steel, ensuring heat resistance and long life.