Great cuality tool and great precision I just hope it came with two drill bits.
I wish it was a few dollars cheaper too but great tools are expensive.
Got my F150 Harley Davidson truck fixed and that's awesome.
Comes with a tutorial video to show you how to get the job done. Make sure to watch video and check yourself twice before start the job. It's a DIY project but do it right and professional because you deserve it.

I installed inserts on all 10 cylinders, (I had to buy 2 more inserts sold separately) now my truck runs again. I did it in the driveway. Air compressor and a good ratchet is necessary. Once I fixed the first one, I just went in the firing order so I didn't have to turn the crank over to far. Very recommended

Fixed my 97 Expedition that had a blown our spark plug two weeks ago and it is running great. I was really nrevous about trying to do this myself, but I had to keep the costs as low as possible. Bought the CalVan 38900 and let it sit for a couple of weeks till I got up the nerve to tackle the job. Looked at a bunch of videos including the one that came with the kit and was pretty sure that I could do this even though I only had hand tools to work with. I had no bore scope, air ratchet, or starter button, but was able to do the job just fine with a 1/2" ratchet handle, I bumped the motor over using the key to get the valves closed and measured piston height by using a soft plastic rod inserted into the spark plug hole. Luckily I was on the front of the engine so it was easy to get to. The supplied guide holds the reamer and tap bits in the correct position and it takes a few minutes to get the hole ready to install the insert. The inserts look well made and went in without a hitch. It was easy enough that I wanted to do the other 7 plugs but didn't want to deal with the clearance issues towards the rear of the engine. But should the need arise later, I have the kit and 7 inserts ready and waiting.

Excellent high quality professional tool. Makes this intimidating job a breeze. Took me about 1 hr to complete the job start to finish and I was being very meticulous and cautious due to the fact it was my first time doing this procedure. If I were to have to do it again it would probably take half the time. If you've got a 5.4 liter 2 valve with a blown plug do yourself a favor and get this tool... It will pay for itself the first time you use it.

I'm not a professional mechanic, but I am very well at tearing into all my cars, down to the last bolt.

I have in the past used Helicoil, tapped, did it all.
This CalVan set, is top notch. I can't express enough the quality, engineering, and inclusion of the proper accessories.

This kit deserves 6 stars.