Topic: Tools: JIS screwdrivers

[Scott S]

 I've encountered quite a few knackered Phillips head screws recently. Only tonight did someone tell me about JIS screwdrivers. He said standard Phillips head screwdrivers are slightly different.

 Where might one find some JIS metric screwdrivers? Or is this like a "muffler bearing"?

[Markcb750]

I bought some Crescent screw drivers that have a square shank and fit the Honda screws well.  I do not think they are labeled JIS.

[Really?]

I and others have picked up these.

http://www.mcmaster.com/#jis-(japanese-industrial-standard)-screwdrivers/=742v21

The small drivers will say JIS on them.

The large drivers say JIS on the site but on the drivers themselves say Phillips.

I called and they said they were the correct ones and they feel perty good in the grove.  They look slighlty different than the other Philips I have so they must be them.

Fabricator (http://forums.sohc4.net/index.php?action=profile;u=9953) has these as well.

[Scott S]

 Well, I'll be darned:
http://www.rjrcooltools.com/jis.cfm

http://www.rjrcooltools.com/vessel.cfm

[Really?]

Those look nice.  Never found that page when I was looking.

[Duke McDukiedook]

I'm not sure about the 500 BUT ALL 750 SCREWS ARE ISO, NOT JIS.

Thnks,
mgmt.

[Really?]

You sure?  I thought I saw the dot on the heads.

[Really?]

Just throwing this out for reference.

http://www.instructables.com/id/When-a-Phillips-is-not-a-Phillips/step10/JIS-Japanese-Industrial-Standard/

[markb]

All I know is that my JIS screwdrivers fit the screws on my 750's better than my phillips do.  Maybe I have crappy phillips screwdrivers.
Mark

[domer]

a #3 phillips works quite well, the one i use is actually a #3 bit in a driver...

[robmanero]

I use Snap-on screwdrivers. Nothing else feels close. They fit all the screws on my jap bikes perfectly. Very well engineered. Never strip one out. Huge difference over the Craftsmans I used to have. Try one and you'll see. For the stubborn ones, I have a Snap-on impact driver. Little pricey but again a huge difference. I used to have a generic one, you'd smash and smash at that thing and it might get the screw out but the screw would be trash when you were done with it. Snap on impact, I barely have to hit it and the screw is out, in perfect condition without so much as a scratch. If you really care about keeping the hardware nice on your rice burner, go out and buy some Snap-Ons.

[RAFster122s]

Early JIS standard was not the same as ISO, ISO and JIS now are very similar to one another.
David

[MCRider]

In the late 60s, Honda made the change to ISO on 6mm and larger screws. They do not have the dot on them. However, even on the 750 5mm and smaller screws are JIS. I was in Honda parts when this was going on and we had to order new hardware for the new models. I was just a kid, but i remember all the hub bub.

Lots of misinformation about this and anxiety about not having the right tool. Standard Phillips drivers work fine on 6mm and larger screws. Regardless of model. They don't have the dot.

I may be wrong but I'mm 99% sure I'm right.

The dot tells the difference. If there is no dot on the screw in question it is ISO/Phillips. On the 5mm and smaller which have the dot I think a #2 Phillips works fine anyway.

[MCRider]

I'm not sure about the 500 BUT ALL 750 SCREWS ARE ISO, NOT JIS.

Thnks,
mgmt.

Agreed on the 6mm and larger. Not the 5mm and smaller. They have the tell tale dot.

[Don R]

I noticed if I pick the correct appearing screwdriver and then get the next bigger one it works better. I have a snap on bit that works like a dream in my little battery impact. Zips em right out no damage no fuss. I tried to buy more bits like it, they no longer have that number.

[Trav-i]

I can attest to the difference in screwdrivers.  Since Fabricator bought those JIS screwdrivers life is a lot easier.  They fit all those small screws perfectly, so no more stripped screw heads.

Just my .02

Travis

[RAFster122s]

Anyone know the JIS size screwdrivers needed for the '74-76 CB550?
Anyone know a source for a long bit driver in JIS #3?
The RJR CoolTool's Vessel driver bits and screwdrivers only go up to a #2 JIS.

Thanks!
David

[MCRider]

Anyone know the JIS size screwdrivers needed for the '74-76 CB550?
Anyone know a source for a long bit driver in JIS #3?
The RJR CoolTool's Vessel driver bits and screwdrivers only go up to a #2 JIS.

Thanks!
David

Do the screws you are looking to remove have the raised dot (or sunken dot) on their heads? If  they are 6mm screws like on the engine cases I'll bet dollars to doughnuts they don't and so they are ISO screws. An ISO/Phillips #3 is the tool.

The only JIS used after 1969 or so were the (very few) 5mm and smaller like hold the instrument cables in. For them a #2 Phillips will work just fine.

[Deltarider]

Why not bring the genuine screwdrivers (that are/were in the Honda tool kit) to the hardware store and buy identical screwdrivers of a somewhat better quality?

[NobleHops]

Necromancing this thread with an update:

This un-named set "3-Piece JIS Ultra-Grip Screwdriver Set" at MacMaster Carr:

https://www.mcmaster.com/#53325A61

Is in fact a 3-piece Vessel set of crosshead screwdrivers, #s 1, 2 and 3. At $34 per set it has everything you need for JIS screws, and nothing you don't.

[Stev-o]

Hey Nils...have you tried the Vessel Megadora 980 Impacta?

It's good for screw that are tight but when an impact driver isnt necessary.


https://www.amazon.com/Vessel-Megadora-Impacta-P2x150-Screwdriver/dp/B003BGZ9CO

[NobleHops]

Wellllllllll.......

Yes, I have two of them. I use them for prybars. I don't find them effective as impact drivers, but it sounds like you do? I sure tried them, on some old CT cases and the like, classic old Honda crosshead case screws, many whacks before any joy. Then dug out 'Ol Blue and WHAM, 1 or maybe 2 hits per screw, done. 'Ol Blue gets the call first nowadays :-)

For that reason I do not feel like the big Vessel set including their impact is such a good value. If you need JIS, I think the smart money is on this three-piece set and use your other good flat screwdrivers and impact drivers for those tasks.

[Stev-o]

 I don't find them effective as impact drivers, but it sounds like you do?

No, not a replacement as an impact driver! 

[shawn57nomad]

Scott, you may want to check out Wera tools.  I've used these and had others borrow and abuse them in the Millwright Trade and they just keep ticking.  I've found that they have lots of great quality tools also wrenches and the usual.  Super good quality, I'd say even better than the man in the truck can offer!
This oughta have a travel tool roll setup nicely:
https://www.kctoolco.com/wera-056490-tool-check-plus-bit-ratchet-set-with-sockets-metric/


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