Features:* .* Made of high-quality high-speed steel * Titanium coated to reduce friction and heat * 3-sided design to prevent shanks from slipping when in chuck * Dual flute design for faster, smoother and cleaner cuts, and each step is clearly marked with the depth diameter in steps * Ideal for cutting holes in a variety of materials, including steel, brass, wood, plastic, etc. Specifications:* Material: High Speed Steel * Finish: Titanium * Color: Gold * Length:4-32mm Length: Approx. 10.2cm/ 4.02" * Step Cutting Size:4-32mm 15 Steps (4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm)Package Content:1 * Step Drill Bit (4-32mm)Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.