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Old 15-01-2019
daz75 daz75 is offline
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Default Losi XX tool types imperial confusion

I've been using some old tools i got from my dad but most of them are crap so thinking of getting some new ones. The instructions dont say what size hex drivers i need and the screw sizes confuse me as they are all imperial. For example 4-40 3/8" 3/8" is the length, what does 4-40 mean and how does it relate to the size of the drivers as they all say

Inexpensive set with Aluminium machined and anodised handles. Hard bit. Four sizes - 0.050, 1/16, 5/64, 3/32

So would none of those fit the 4-40 3/8?

Others also say

1x .050x60mm
1x 063x120mm
1x 078x120mm
1x 093x120mm

Last edited by daz75; 15-01-2019 at 04:29 PM.
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Old 15-01-2019
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NeilRalph77 NeilRalph77 is offline
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4-40 is the thread diameter 4/40th of an inch 0,100" or 2.54mm. As for the tool sizes you've listed there the same sizes just as a fraction or a decimal, the .050 is just shorter reach than the other 3, the sizes on those relate to the hex size not the thread size but are right for what you need.
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Last edited by NeilRalph77; 15-01-2019 at 07:55 PM.
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Old 15-01-2019
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Hi,


All the screws on those American kits of that era were 4-40 or 5-40 if they were larger.


For allen drivers you'd need:


.050" for the grub screws.
1/16" & 3/32" for the 4-40 screws, it depends on the head of the screw if you need the small 1/16" or the larger 3/32"


This style of screw would use the 1/16"

This would be 3/32"





But both are 4-40 thread. So depends what you are putting together, what screw you use.


MiCk B. :-)
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Old 15-01-2019
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Yeah Mick's right just got home now so checked on the old X6 1/16 for the 4/40 csk and 3/32 for the 4/40 capheads, the .050 fits the small 2/56 button heads as well.
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Last edited by NeilRalph77; 15-01-2019 at 07:57 PM.
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Old 15-01-2019
daz75 daz75 is offline
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Ok thanks lads
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Old 15-01-2019
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Also 5/64 is 2mm

If you are looking for a new screw kit we do a complete stainless steel kit http://screwz4rc.co.uk/product/losi-xxcr/
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Last edited by tyreman; 15-01-2019 at 08:27 PM.
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Old 15-01-2019
daz75 daz75 is offline
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Quote:
Originally Posted by tyreman View Post
Also 5/64 is 2mm

If you are looking for a new screw kit we do a complete stainless steel kit http://screwz4rc.co.uk/product/losi-xxcr/
Yes bought one the other day. Of course being a xxcr kit means the ones that are rounded aren't included

Bit confused with the lengths too as I thought the sizes were as per the pics on the instructions seems they are a bit different though

Last edited by daz75; 16-01-2019 at 03:35 PM.
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Old 21-01-2019
daz75 daz75 is offline
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Bought these

https://www.rccarshop.co.uk/accessor...78-093-4-pcs-p

Annoyingly they don't seem to fit wtf???
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Old 21-01-2019
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I’ve got those and they seem to fit all my imperial stuff
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Old 21-01-2019
daz75 daz75 is offline
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Quote:
Originally Posted by Peakey View Post
I’ve got those and they seem to fit all my imperial stuff
My dad's old 1/16th associated tool that falls out of its handle works better than these. It either spins in the whole rounding all the edges or does even fit in properly don't get it

The biggest one seems fine the other 2 don't fit anything
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Old 21-01-2019
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I have a set of mip imperial Allen drivers they look a bit old school with amber yellow handles but quality is top notch
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Old 21-01-2019
daz75 daz75 is offline
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Quote:
Originally Posted by fidspeed View Post
I have a set of mip imperial Allen drivers they look a bit old school with amber yellow handles but quality is top notch
so's the price
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