VIDEO: Drilling Through a Stack of 4 Different Steels With the New HPX Solid Carbide Drill

We're taking a closer look today at the HPX solid carbide drill for steel. Did I say steel? Sorry about that. I meant for steels and that's with an s at the end. Why does that make a difference? There's a huge difference between these materials and there are huge differences when it comes to the drill point requirements, the edge preparation, the chip evacuation, but also when looking at the recommended cutting parameters. The HPX drill for steels performs extremely well in all of them. We'll show it to you in just a second.

We're starting to drill into a low carbon, long chipping P0 steel followed by an H13 tool steel. Next is a 17-4 PH stainless steel and finally a hardened 4140 steel with 35 Rockwell. We're drilling through each of the first three plates which are 12.7 millimeters thick then we'll end with a blind hole into the last plate of 4140, also 12.7 millimeters deep. But we'll drill through all four of different materials at the same time by putting all four steel plates together as on a large stack. We'll drill several holes applying a speed of 140 meters per minute and 0.38 millimeter feet per revolution. Now, that may not sound very fast, but keep the varying material properties in mind I spoke about at the beginning of this video. 140 meters per minute is a mid-range speed rate for all four steel materials. Let's look at the feed rate and where that range is according to the recommended cutting data for this drill. 0.38 millimeter feed per revolution is at the lower end for the tool steel and the hardened steel but already at the upper end for a low carbon steel and for the PH stainless steel. We could hear how smooth the HPX drill went through all four steel materials and mastered it without any problems. Thanks for checking out the HPX solid carbide drill for steels. Don't forget to like this video and subscribe to our channel so you don't miss out on any of our upcoming videos.