About This

Four Spiral Flute: Compared to ordinary step drills and double and three sprial flute step drills, the cobalt step drill has a unique four sprial flute design that will make the entire cutting process smoother and bring you the pleasure of cutting butter cubes
TiAIN Coating: The surface of the step drill bit set for metal heavy duty is coated with a layer of TiAIN, which can minimize the wear of the drill bit during each drilling process. The hardness of the 89HRC surface has also improved to a higher level, which can cut harder materials and greatly improve the cutting speed
M35 Cobalt Material: This is a M35 cobalt step drill. You will obviously feel that it is more solid than conventional titanium material, and it will also make you feel unprecedented smoothness in the drilling process. It will be more excellent than you think
13 Hole Sizes: The specification of the step drill is from 1/8 "- 1/2": 1/8", 5/32", 3/16",7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2". Each type of step drill contains a variety of specifications, which can meet your needs in a wider range. At the same time, you do not need to change the drill frequently, saving your precious time
Care Tips: If you have any questions, please refer to us and we will be happy to help you