Tamiya Screwdriver small and large, sizes?

[Dan1891 210]

What sizes do the Tamiya screwdriver small and large correspond to in Philips size?

Is the small PH1 and the large PH2? I know the Tamiya are JIS standard, but i think you can grind down the tip of a Philips to fit?

[skom25 1754]

Yes, it is around PH1 and PH2. Definitely not PH0 and PH3. 

I read a lot about troubles with Tamiya screws, so before first build I just bought both Tamiya screwdrivers. They are cheap and fits perfectly. I really do not see reason to modify PH.

[Dan1891 210]

1 minute ago, skom25 said:

Yes, it is around PH1 and PH2. Definitely not PH0 and PH3. 

I read a lot about troubles with Tamiya screws, so before first build I just bought both Tamiya screwdrivers. They are cheap and fits perfectly. I really do not see reason to modify PH.

Thnks! Well, i have a lot of Philips at hand, so i give it a try

[Willy iine 18823]

11 hours ago, Dan1891 said:

Thnks! Well, i have a lot of Philips at hand, so i give it a try

Yeah, I use mostly Wera's and they are filed tip Phillips heads. (PH1, PH2) for JIS screws.   Works great. 

[Dan1891 210]

15 minutes ago, Willy iine said:

Yeah, I use mostly Wera's and they are filed tip Phillips heads. (PH1, PH2) for JIS screws.   Works great. 

Splendid! I try to file down the tip of an PH1 and PH2 then!

[Willy iine 18823]

11 minutes ago, Dan1891 said:

Splendid! I try to file down the tip of an PH1 and PH2 then!

Yeah, actually I also use filed tip PH0 as well.  GL!    PH2 is on the large side for RC.

[skom25 1754]

I can measure diameter of Tamiya screwdrivers. Will it be helpful?

[Dan1891 210]

4 minutes ago, skom25 said:

I can measure diameter of Tamiya screwdrivers. Will it be helpful?

It will for sure! Then we know the dimensions of these tamiya ones!

[skom25 1754]

Large: 4.9 mm

Small: 3.95 mm

Small is for 2 - 2.6 mm screws 

Large is for 3 - 5 mm screws

I used small only in two places of DT-03...

[Dan1891 210]

20 hours ago, skom25 said:

Large: 4.9 mm

Small: 3.95 mm

Thank you for these dimensions! Perfekt, then i can match them to my Philips ones!

So tamiya small is PHO and tamiya large is PH1 when i measure my Philips.

They where spot on to your values!

[Dan1891 210]

I just filed the tip down a bit on a PH1 i had on hand, and wow!

It now fits like a glove in the tamiya 3mm screws in my Wild Willy 2 kit!

[Willy iine 18823]

2 minutes ago, Dan1891 said:

I just filed the tip down a bit on a PH1 i had on hand, and wow!

It fits like a glow in the tamiya 3mm screws in my Wild Will 2 kit!

Good job.  Now you can have all your favorite EU drivers (Wera, Wiha, etc ) to be fully compatible with JIS.    

Ergonomics means a lot to me and just love my Wera/Wiha driver sets.