Saw drill wood drill. Hardware tools sawtooth slot cutting tools. Material: HSS 4241. Surface treatment: Titanium coated. Suitable for thin wood, wood, aluminum, plastic plates, tensile grooves. Features: Size: 3 mm, 4 mm, 5 mm, 6 mm, 6.5 mm, 8 mm. Quantity: 1 set (6 pieces). Package Included: 6 x Woodworking Drill Bits Note: This does not include other things, the color is based on the first picture and other pictures only show as the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!