3pcs 4-12/20/32mm HSS Step Drill Bits Set Spiral Grooved Hole Cutter

Description: 3pcs 4-12/20/32mm HSS Step Drill Bits Set Spiral Grooved Hole Cutter Specification: Material: Hight Speed Steel Size Steps Shank Diameter (mm) Approx. Overall Length (mm) Approx. 4-12mm 5 Steps (4, 6, 8, 10, 12mm) 6 64 4-20mm 9 Steps (4, 6, 8, 10, 12, 14, 16, 18, 20mm) 8 75 4-32mm 15 Steps (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm) 10 101 Quantity: 3pcs/set Features: High-speed steel, good chip removal ability and durable for use Professional design, which makes drilling holes more precise with smoother cutting These drill bits works great in making a smooth, clean and perfectly round hole Ideal for using to cut holes in a variety of materials Including steel, brass, wood, plastic, etc Package Included: 1pc x 4-12mm HSS Drill Bit 1pc x 4- 20mm HSS Drill Bit 1pc x 4- 32mm HSS Drill Bit Notice: 1. Please allow a bit error due to manual measurement. please make sure you do not mind before you buy. 2. The color may have different as the difference display, pls understand. More Details: Steps