There is a lot of discussion on HK(C) 55 saws recently on FOG, so I thought it would be nice to write first post on FOG and share some of my experiences with that saw. I have HK 55 (corded version) + FSK 420 cross cut rail for about 8 months now. I'm not a professional woodworker and I don't have workshop that packed with Festool and Felder goodness. I'm just homeowner that reserved everything made from wood to be done by myself in house I just bought. I'm skilful enough to get that done really good and enjoy the outcome of my work. So beware, this amateur sharing his opinion 
Why HK55 was a good choice for me?
I used HK55 as my only circular saw in following jobs
What I really like
What I don't like
Mythbusters
Summary
HK(C) 55 is great saw, especially when combined with FSK and FS rails. Despite the fact I'm not professional woodworker, I really think that it could be one and only circular saw in the workshop. Especially if one want's to minimize amount of equipment or is just starting professional career/shop.
I still would like to buy TS55 and Kapex and have my HK55, to get the work done even faster and better. But HK55 is such good compromise, that I can't really justify cost of those.
Why HK55 was a good choice for me?
- I wanted to limit the amount of tools and also their cost - we all know that new houses are expensive [wink]
- I really appreciate quality of things and I'm able to pay for that extra to get better results, performance, etc. - HK 55 is worth it
I used HK55 as my only circular saw in following jobs
- Kitchen - Majority of stuff I ordered as pieces cut to dimension and ready to assemble, but still there but were quite a lot of changes to original project. HK55 was used to cut melamine chipboard, oak veneered plywood, solid wood.
- Three Wardrobes
- Wood deck
What I really like
- Speed - this is the thing I like the most in this saw. Whenever I had to do a quick cross cut, just used the FSK rail. Quick angle set and done - smaller pieces you can cut in the air, just holding the saw and piece you cut in your hand (not a safest option though). Need to trim the door, all you need is FS rail and done.
- Precision - bevel angle setting is much better than in TS55 - one knob that locks angle on both ends of the saw. Mine was set up perfectly out of the box, but if you need to correct 0/90 degree point there are two screws that allow that. Also you can easily adjust the angle scale arrow/pointer.
- Versatility - it's the saw that can do almost every kind of cut - rip cut, cross cut, plunge, you name it!. The big advantage for me was that with FSK rail I saved myself some money that I would spend for SCMS. Is SCMS redundant then when one have HK(C) 55 saw? NO Small pieces are hard to cut with FSK rail and also SCMS is more convenient to have.
- Additional handle on bottom plate - this is super handy during beveled cuts
What I don't like
- No 45 degree bevel stop - the saw goes up to 50 and that's good, but it would be awesome to have predefined 45 stop.
- Dust collection could be better - I realize this is not a TS55 that is purposed to be used indoor with dust collector, but with little effort this could be done much better. I mean what is the point of leaving blade exposed that much. I'm thinking about designing 3D printed cover than can be attached to plastic part of blade cover.
Mythbusters
- HK(C) 55 can't use TS55 blades - yes it can! - I've been using TS55 48 teeth blade for about 80% of time. There are few things to keep in mind though. Riving knife is 1.8mm so it won't do it's job with thicker kerf blades, but since 48 teeth blade is mostly used for crosscuts and sheet goods, it's not a big problem. Also on cordless version you're looking into shorter battery life.
- HK(C) 55 can't plunge - yes it can! - it's just not as convenient as in TS55. It's two handed operation. You have to set the depth of cut, push the button to enable plunge mode. Then you lift the blade cover with your left thumb, while holding the handle on baseplate. Your right hand holds the saw, places it on rail and does the plunge motion.
- HK(C) 55 is cheaper thus less precise than TS55 - no it's not! - I did side by side comparsion with TS55 on plywood and melamine with 48 teeth blade. The only thing that was different is that offcut piece's edge is not protected by splinter guard, thus is chipped/not as pristine.
Summary
HK(C) 55 is great saw, especially when combined with FSK and FS rails. Despite the fact I'm not professional woodworker, I really think that it could be one and only circular saw in the workshop. Especially if one want's to minimize amount of equipment or is just starting professional career/shop.
I still would like to buy TS55 and Kapex and have my HK55, to get the work done even faster and better. But HK55 is such good compromise, that I can't really justify cost of those.
