We Found Something Strange Inside DeWALT's New Tool @ 10,000FPS

The spring would need to be wound the other direction for it to be flipped and see a difference from a spring direction change if any. Rotating it on its head 180 degrees wouldnt do it. What's unique about the spring isn't that its so strong, a heavier spring would not allow for the assembly to bounce all the way back. It's the whole strategy they used that is fascinating.

DeWalt: What if TTC gets hold of this? Better paint the spring yellow.

Perfect timing. My wife was just asking for a new one.

The spring is most likely painted as a code. Where ever it is manufactured, there are probably others that look similar; but, have a different compression value.

DeWalt should reverse that spring and internal helical and call it the DCF861 Driver, while this one becomes the DCF860 Reverser.

I'm beginning to think DeWalt has some dark magicians working at their R&D labs.

I always get a kick out of seeing one tool brand disassemble another brand. It’s silly, but I like to imagine they are sparring against each other.

This channel is the best thing to happen to the internet

Crazy what you can find out when you actually break the tool down instead of just driving lag bolts to compare stuff. Thanks for your time and passion for tools.

I need to get my hands on that and fit a 3/8" anvil on it!

The painted spring reminds me of primary clutch springs for snowmobiles and atvs, where different colors mean different compression rates

Hey y'all. Just wanted to say how much I love this channel and that it has genuinely HEAVILY influenced my tool buying tendencies. I've got most of the heavy hitters (career mechanic that also does a fair amount of work on the side) including the Astro Thor 1984 1/2" and the DCF961. Don't think I'd ever have bought either if not for the hard-earned real world numbers from your channel. Every time a coworker is considering a new tool, I always tell them about this channel first. Keep doing what you're doing, I absolutely love it.

That needs to be tested with an anvil instead of the bit chuck

I have been surprised with my Gen4 M18 impact through a few mishaps. 1st I left my work area to do something and a concrete guy set up a ladder and wet-cut an 18in square hole above my impact covering it with concrete sludge water. I was livid! I opened it up and found no internal signs it happened at all! 2nd, five months later, I dropped it (came off my belt) from 40ft off a boom lift onto a wood railing, onto rebar, and into a 10in deep mud puddle. I went down and cleaned it off and then decided to disassemble it, to find hardly any muddy water inside, cleaned it up, and reassembled it without any problems. Took it home and re-greased it. 3rd, I dropped it again from my belt clip and the front of the impact popped halfway off (it only clips on), popped it back in, and again other than a sharp gouge in the housing, it still works great! Also, the belt clips suck when you bend down to pick things up. Other trades are often selfish ass holes! He could have moved, or asked me to move my tools. No apology or anything. Later, I heard Karma bit him in the ass when someone knifed the sidewall of his truck tire.

DeWalt seems to have dialed the tool in (the spring) so that you're hitting the natural frequency of the hammer assembly, with the rebound timed in just the right way to get more IPMs out of the assembly. Pretty gnarly vibrations as a result but I'm wondering if they're gonna push this on their future tools.

Love the analysis, and the camerawork is outstanding.

I've seen videos of the DCF860 driving screws slightly faster than the latest M18 fuel, repeatedly. I wonder if that "dance" has a rhythm in forward that is better timed in a fastener in wood scenario vs the dyno. Otherwise it seems like it would perform worse with all that missing, even considering the slightly higher speed and listed IPM.

Cool slow mo footage! That thing hits fast!

Have you tried having some shims made to preload that hammer spring a bit more to see how that would effect the performance of the tools?

This is incredibly interesting! Thanks for this breakdown, guys 🙏🏽