mumblety-peg

My Feedback: (3)

Hi All,

I need some help choosing an extra long ball drive. I need this to install the wings in a Starfire EDF. The wings use a single 4mm screw each to secure the wings. But whoever designed this thing must have had tiny hands. It's just not possible for me get at the screws with the push rods in place. So I was thinking I'd put a small hole in the fuse and get at the screw through through the fuse.

Now here's the dumb part. I have 4mm socket head screws. And I have a long ball-driver labeled 4mm. but it does not fit the screws. Have I misunderstood something? What size ball-driver do I need for a 4mm socket head screw?

Thanks
Mum

delman

The 4mm size is the diameter of the threaded end of the screw. You will have to try other ball driver sizes for the head.

scale only 4 me

My Feedback: (158)

A 4mm standard Cap head bolt takes a 3mm driver

Charlie P.

Ha! In 1974 they were trying to convince us the Metric System was easier and intuitive.

It's 118/1000th of the width of the King's thumb.

vasek

My Feedback: (4)

you've must of had some tooth ache drops!

Jim_Purcha

My Feedback: (8)

There are a lot of north american companies whose products are all designed in metric. Some times it does make it easier to measure.

Jim

mumblety-peg

My Feedback: (3)

Thanks gang. looks like the maiden will wait a bit

TomBates

Take a look at this web site. Look around a bit and you'll find what you're looking for.

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

Tom