This Cummins Crankshaft Was Almost Scrap Metal... 

I've been a machinist/tool and die maker for 45 years and this is the first time I've seen a crankshaft ground! Thank you, it was a wonderful video!

I’m not sure you realize just how awesome a machinist you dad is. His skills are absolutely impressive. He is an excellent teacher too!

The movement pattern of your Dads hand tightening the steady rest just the right amount while grinding is a true testament of a master machinist becoming one with his machine. It's a humbling experience to see this kind of dedication to the craft.

This video is beyond priceless. This is like watching magic and your father is the magician. I am 81 years old, have worked on automobiles and machinery much of my life, but have never seen such an excellent introduction to anything as complex as crankshaft grinding as this. Thank you very much for sharing this!

Fantastic video I'm a retired 35 year diesel mechanic, all the parts we put into the engine are nicely wrapped from the machine shop and ready to go. I never knew until I saw your video how much time and precision goes into getting those parts ready. I guess I'm trying to say it's machinist appreciation day. 😀

Watching your Dad is like watching my Dad when he was still here. From lubing the chucks to the way he explains everything. Brought a smile to my face. I was lucky to have a wealth of knowledge just like him.

67 year old truck driver here. The ART of grinding cranks like this has been a fascination since I was a kid and overhauled my go-kart's 5hp gas engine. The skills, talent and most importantly patience to do this job the right way, everyday! God bless you for your talent, and thanks for letting us look over your shoulder.

This is so impressive. We need more guys like him around these days

I saw no mistakes. Only happy little accidents. Watching this man set up a machine and work is comparable to watching Bob Ross. So educational, yet relaxing.

I ground crankshafts for many years using a Berco RTM 300. Loved the "stabilizers" between counterweights! I even had a little umbrella shade on my Arnold gauge too. You guys have made a great and fun video explaining this process. Thank you crank brothers!

That .002 crank flex was crazy!

We are all very privileged here to be watching a true master at work, one who is totally at one with his machine. SImply put, this is a grinding master-class.

That cleaning guy is really getting the hang of that crankshaft grinder! Seriously, thank you for showing us the entire process of grinding a crankshaft. We appreciate the in-depth content!

I absolutely LOVE how clean your shop is. Most machine shops I’ve been in is an absolute cluster f**k. If I was local I’d feel confident hiring your service

Thank you both so much for this VERY interesting video. As an OLD(80) yr. old 'gear head' from the big block era of the 60s, and a guy who still changes oil and greases the front end of my '02' Ford E250, I really appreciated the workmanship, and honesty shown in this video. BTW, I watched the tear down video of the 327. I rebuilt my share of small blocks way back when, that was a mess. Thank you for both videos. Sincerely, Bruce F. Raykiewicz.

I really enjoyed seeing you and your dad work together. As a young boy growing into a young man, I got to work with my dad who was an expert butcher in our butcher shop. There's nothing like learning a trade from a man that not only is an expert in his field, but loves his work and loves teaching his son to know the trade as well. I still appreciate my years in the market with my dad.

I used to work at cummins JEP putting those cranks in the ISM and ISX engines. What a great place that was to work. Dunno what it's like these days but it was utterly astounding how good the workers there had it. Quality was absolutely amazing also.

amazing. I'm so glad I found this channel. I lost my Dad back in 2010, and seeing you work so well with your father makes me smile.

I had never seen this done before and had long wondered about how it is done. The attention to detail and personal dedication to excellence that are required are simply incredible! Hopefully there are a few young people out there learning this from experts like your dad.

I suspect your father was extremely disappointed in himself with the mishap leading to the chatter, but the true professional in him did a great job in recovering the crank. I hope in time under his tuition you inherit his wealth of skill and knowledge and can continue to build on his legacy.