Review on 🔩 Efficiently Drill Manifolds with Lisle 71400 Manifold Drill Template by Dre Bhatt

The only part of this kit that is missing is the easy exit. The one provided was a square type that you drive into. I've found this totally unsuitable for removing a broken bolt after it's been drilled. As you can see from the picture in my review, I used the spiral style to easily loosen the screws after drilling. I was really impressed with the quality of this device and how it works. All other components of the kit are of excellent quality. Drill bits in a set of high-speed cobalt. It's a really nice touch as they have superior durability compared to standard high speed drill bits. It's also great that they include lots of extra exercises in case someone gets bored. All components are housed in the supplied blow molded plastic case. It took me at least 30 minutes to drill each hole. I oiled the drill, drilled for a few seconds, then pulled the drill out, bled it, removed the drill guide bushing, blew out the hole and bushing, then put the bushing back in, lubricated the drill bit and repeated. I think I drilled .030 to .050" deep between oil applications. I think when you try to drill deeper holes it has a significant negative impact on the performance of the drill bits and their ability to stay centered on the bolt. As you can see in the photo the hole I drilled in the stud was dead.