These are my 1/4" Snap-On's.
.....
What you perceive as
sharpness/uniformness of engravings is actually a focus/lighting issue. I think
Koken stamping is if anything sharper and better defined. Here are two Kokens and a Snapon.
View media item 94070
Note also that Koken
doesn't need to brag like Snapon does. The stamping is properly on the bottom rather than all over the head.
I'm not a fan of Snap-On's new stamping style, especially newest with "USA", plain stupid and ugly. Already there is a "USA" at the handle. Agreed, it's bragging. I prefer older style stamping: deep and sharp.
I don't know why they changed the stamping, the only thing make sense to me is: style change. Though there are metal deformations at the edge, the stampings on the head are still pretty deep and uniform.
From you picture, I noticed the following:
The Koken to the right has crude, industrial finish, the "Koken" logo is shallow and weak. Is the backing plate uneven? The flat part of the handle seems rough. The chrome plating looks much thinner than Snap On. Is there a part number stamped somewhere? Based on the workmanship (finishing quality), this Koken is a $30 ratchet.
The chrome on the ratchet to the left seems better, but still looks thinner and not as shinny (especially the head). The "MADE IN JAPAN 169" looks uneven, like someone punched on by hand. The white screw breaks harmony, it would have looked better on both side with a heat treated screw. The blacking plate lacks detail. Based on the workmanship, this Koken is a $50 ratchet.
This is Snap On, notice the recessed area at the screws, and the perfect stamping on the handle.
Snapon, direction switch finish quality: are you serious? Their directional lever "design process" looks like they finished the head, and somebody realized that it was supposed to have a directional level. So he spat on the head and they drilled the hole for the lever over the wet spot. Koken is superior here.
Let's examine the rebuild kits of Koken vs Snap On
The Snap On selector may require forging. Koken seems made out stamped metal sheet.
The 2 sealing gasket
heat treated screws for strength
locktite
What looks to have better quality? Is Koken "superior" or "generic"? I'll let others to chip in.
Koken designs for what they think matters. That coincides with what a lot of us think Assuming sufficient strength and reliability in use, my criteria are more like:
1) Backdrag
2) Slop
3) Consistency of above between different units
I don't know under what situation "backdrag" is a problem. I use my ratchets for auto maintenance. I always start a bolt with hand (to avoid cross threading), and I always unscrew a bolt with hand for the last few threads (to avoid the bolt/nut dropping into engine bay). Never had to use ratchet at a few inch-oz torque level.
I don't know under what condition a low tooth count ratchet (24/36 teeth) can have lower backdrag than a 72 teeth. The back drag is created by the paws. Weaker springs would allow that. Sloppy fit (such as paws not fully engaging) would allow that. In both cases, the ratchet won't have good strength.
You're kidding, right? Let's take a closer look at two Dual-really-72 Snapon made ratchets and three Koken ratchets (two 1/4" drive, one 1/4" bit - basically the same as the OP's except 1/4" rather than 5/16").
View media item 94068(Koken bit ratchet and Snapon were upgraded with Hazet hard plastic handles. Wiha-handled Koken was at one time, though sadly no longer, sold by Wiha.)
And a close up of the head finishing:
View media item 94069
In terms of finish quality, IMO it's Koken Zeal, Koken, Bahco Dual-really-72, Snapon Dual-really-72. Interestingly, for those who really care, Bahco stamping is much cleaner than Snapon stamping.
We have different eyes/focus/standards for finishing quality, let's leave at that.
BTW, I like the handles in your 1/4" collection.
Never mind that Koken's head is markedly smaller in every dimension. That, like Koken's markedly superior feel in use, has actual real world ramifications in a way that brand and part number stamping does not.
Snapon is a public general tool corporation that regularly redistributes profits to shareholders and sells primarily through franchised delivery vans. Koken is a privately held company that specializes in socketry....
Autozone sells a 72 (or 90) teeth 1/4 quick release ratchet with the smallest head I've seen. Tekton 90 teeth ratchet feels pretty compact too.
Frankly, I don't think Snap On 1/4" ratchets offer much better performance than cheap 72T ones. Snap On's Dual-80 shines at 1/2" drive, so smooth. In terms of finishing quality and design, Snap On is outstanding. That may help to explain its popularity among auto mechanics. Gearwrench's finish is no where near Snap On, but in terms of performance and ingenuity, I'd rank it at top among all ratchets on the market.
Have you noticed that your Koken Zeal the gap on one side is larger than the other at the flex? As I mentioned before, low backdrag may be causes by low tension spring and sloppy fit. From the internals, Koken looks from 80s. Instead of "superior", it's rather on the cheaply made/generic side.
As far as I know, KTC is the top brand in Japan, and has similar following among the auto mechanics as Snap On in the U.S.. It seems to me Koken is more like industrial brands Proto or Williams. Not a threat and not on the same grade level as Snap On, IMHO.