3pcs HSS Coated Step Drill Bit Drilling Metal High Hole Cutter Step Cone Drill

Description: This is the New HSS Steel Large Step Cone Drill Titanium Hole Cutter which is made quality HSS steel and with the Titanium coated to reduce friction and heat. Save time because you don t need to change drills for different-sized round holes in thin materials. Each drill acts as a for the next size. Non-skid tip no need punches. Hex shank prevents drill chuck slipping. Drill diameters etched in flute for easy identification. It is very suitable for using holes in a variety of materials including steel brass wood plastic etc. Easy to use and durable. Specification: 3-12mm 10 Steps Length: 78.5mm / 3inch 4-12mm Length: 68mm / 2.67inch 4-20mm 9 Steps Length: 74mm / 2.91inch Package Includes: 3 Pieces Step Drill Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect the actual color of the item might be slightly different from the color showed on the pictures.Thank you!