I have yet to see a phillips head screw driver that has the ability to add extra torque by placing an open end wrench or or similar device on the shaft to aid in twisting. There are round shafted straight slot screw drivers that add a hexagonal and or square area to give support of augmented shaft twisting capability, but no on the phillip's. Should Phillip's be capitolized in this instance?
while we are on the subject of "Tools", here in the US, when you buy a socket set in metric sizes it comes with a three eighths shaft ratshit. In countrys that use the metric system exclusively, Is the shaft size of the drive in something other than eighth's of an inch?
This brings me to chains.
A 530 chain is the size in fractions of an inch of particular aspects of the chain.
In exclusively metric societies, is a chain described in metric sizing?
Say a 1163926530 chain would be an equivalant to the previously mentioned 530 aforementioned chain?

For what I know, Phillips head screws were originally designed to improve mass production manufacture because they are easy to apply the tool to the bolt head without skill or care. They are a mechanical abomination for applying torque or accurate anything. They are fine when they are brand new but then begin to degrade and end up with fixings that are either impossible to undo or do up. They also require the application of an impact driver in extreme situations - another abomination of a tool.

I always try and replace them whenever I can. They suck. And look ugly too. Whoever decided to apply them to Japanese motorcycles in the 70's needs shooting. Allen bolts were a new era for everything. Luckily the SD has few of them.

TRUE

I think that was the point Bic was making.

here's a trick i learned - i'm restoring a little CT1 175 yamaha enduro and the phillips on the engine cases of course are buggered - the bike'd been sittin for years and years so the phillip heads of course sorta stuck in place making it hard as hell to get a grip with the screwdriver.....

the trick : i get a ole no good ratched extension or a flat punch/drift and i set the flat end of the drift/extension against the screw head and crack it nice with a good ole hammer - It mashes the top of the phillips screw down closing the loose fit of the screwdriver , in fact when putting the "GOOD" screwdriver up to the screw it actually doesn't go in to the head of screw - Soooo i simply take a hammer and tap the phillips down into the screw head and it's seated and grippin like it was made for each other ----- The little crack with the hammer and extension to flatten the screw head also dislodges the stuck screw head so it all comes apart easily ...

You guys already knew all this though

john

Oh - here's the little yamaha frame build up ( buildin in my living room ) KTM orange of course (-:

more important than all that... who was phillip?

hurry up dribbler, your only on 1556 posts

Yeh, I knew yours was is a two stroke. They made a street legal version too I think. I have a first year YZ 125, but not near as cool.

Back on post, just to answer one of your first questions, yes,in metric countries metric socket sets still have

1/4, 3/8, and 1/2 drives.

When I was 13, I think this was about 1976 suddenly the UK market was flooded with cheap calculators. They were all made by Texas Instruments and they changed the way we all did math at school. No more long multiplication and division scribbled on paper, no more log charts etc. God Bless Texas Instruments.

This tool was not an abomination.