when is a hole not a hole

[MonniotC]

Make your own - 3x4x5 triangle

Having an extension built years ago, I needed to knock up 3 bespoke door-frames in a hurry so the bricklayer could get on with his work. I needed a BIG set-square to get them true, so I used the 3,4,5 triangle routine remembered from school. The brickie was most impressed.

 

[FulmarJeddo]

Thanks for all the tips

Well I certainly caused a lot of head scratching at, at both Tool station, and Screwfix
I measured the 28ml one, and it cuts a 28ml hole.

I now have 3 x 25ml hole cutters the smallest cuts 23.6 the largest does 24.3ml. No good if you want to push a 25ml axle through

As suggested I splayed out the teeth, then finished with a round file, and the jobs a goodn, but it seemed a lot of unnecessary work when all I wanted was a 25ml hole.

A bit late now, but I also wanted some 25 mm spacers for a launching trolley and was struggling to find something suitable. At the time all the cast iron gas mains in the area were being replaced with plastic. On the off chance I asked one of the gang doing it if they had any 25mm I.d. Pipe. He picked up a coil of pipe and asked how much I needed. I now have bright yellow wheel spacers on my trolley.

 

[KREW2]

A bit late now, but I also wanted some 25 mm spacers for a launching trolley and was struggling to find something suitable. At the time all the cast iron gas mains in the area were being replaced with plastic. On the off chance I asked one of the gang doing it if they had any 25mm I.d. Pipe. He picked up a coil of pipe and asked how much I needed. I now have bright yellow wheel spacers on my trolley.

I needed 24 spacers, with 25ml diameter hole
I found some on the internet, the price was £5, I thought it would be for a bag of 10 or so.
It was each.
I don't think the club would have been pleased if I had put a claim in for nylon washer/spacers at £120

 

[nemodreams]

Its common - mis-sizing. Most 6mm stud is actually 1/4 imperial - can't tell the difference with a simple nut - but try to thread on a stud connector ( lond thread ) and it binds. Threads are not quite the same.
Try checking your 1.5mm drill bits - most if cheap - will be imperial - ie close ( 1.65 ) They can't sell the imperial so lob it off cheap at those who do not notice.Same with 3mm bits.
If its critical - ie tapping holes etc - check first !

 

[crisjones]

I needed 24 spacers, with 25ml diameter hole
I found some on the internet, the price was £5, I thought it would be for a bag of 10 or so.
It was each.
I don't think the club would have been pleased if I had put a claim in for nylon washer/spacers at £120

KREW2, the abbreviation for millimetres is mm NOT ml as has been pointed out by quite a few other people who are trying to help you. Everyone else who has replied seems to have no problems typing 25mm rather than 25ml, although we can understand what you are trying to say it is a bit of a pain when most people will read 25ml as a measure of liquid volume ie 25 millilitres?
It may well be your predictive text settings but it is easy to over-ride so can you try and type the correct abbreviation please.

 

[crisjones]

Its common - mis-sizing. Most 6mm stud is actually 1/4 imperial - can't tell the difference with a simple nut - but try to thread on a stud connector ( lond thread ) and it binds. Threads are not quite the same.
Try checking your 1.5mm drill bits - most if cheap - will be imperial - ie close ( 1.65 ) They can't sell the imperial so lob it off cheap at those who do not notice.Same with 3mm bits.
If its critical - ie tapping holes etc - check first !

I have no idea where you are buying your 6mm studding and 1.5mm drills from but you should change your supplier asap. The UK has been predominately metric for over 30 years and getting hold of 1/4" imperial studding is probably now very difficult without resorting to a specialist engineering supplier. You would certainly struggle to get any 6mm metric nut on any 1/4" imperial studding since unf is 28 threads per inch, unc is 20 tpi and 6mm metric is 25.4 tpi so they are not even close to fitting before we even consider that 1/4" imperial studding is nominally 6.35mm diameter rather than 6.00mm.
The nearest standard imperial size drill bit to 1.5mm is 1/16" and this is 1.587mm not 1.65mm so maybe you should check the calibration of your measuring instruments, even cheap drill bits are usually more accurate than you are implying. Certainly if they are not sharpened correctly or are used in poor quality drilling machines then a 1.5mm drill can easily drill oversize holes but that is different to the actual drill bit diameter being wrong.

 

[KREW2]

KREW2, the abbreviation for millimetres is mm NOT ml as has been pointed out by quite a few other people who are trying to help you. Everyone else who has replied seems to have no problems typing 25mm rather than 25ml, although we can understand what you are trying to say it is a bit of a pain when most people will read 25ml as a measure of liquid volume ie 25 millilitres?
It may well be your predictive text settings but it is easy to over-ride so can you try and type the correct abbreviation please.

No not predictive text just me typing as I say. I do it with spanners too. For instance, I need a 19 mill ring spanner
Lots of people make errors in both grammar and typing on this forum. Fortunately, as you say members on here can read through the mistakes, and understand what people are saying, then offer good advice.
I just had a chuckle, now that I understand PVB's bit of irony in post #2.

 

[dom]

I just had a chuckle, now that I understand PVB's bit of irony in post #2.

Doubt such fine semantics will help when your wife finds out what you’ve done to her LeCreuset chopping boards!

 

[crisjones]

No not predictive text just me typing as I say. I do it with spanners too. For instance, I need a 19 mill ring spanner
Lots of people make errors in both grammar and typing on this forum. Fortunately, as you say members on here can read through the mistakes, and understand what people are saying, then offer good advice.
I just had a chuckle, now that I understand PVB's bit of irony in post #2.

Krew2, sorry, didn't see your previous explanation!! It's just a bit unfortunate that you typing it as you say it results in an abbreviation that actually means something else. After all we can all read and understand sailaboutvic's posts so your abbreviations are easy enough to "convert".
Also can't see why you would use 19 mill when referring to a spanner size and 25 ml when referring to a hole size - they are both millimetres? Actually I think mill is the better option if you have to use something other than mm

 

[penberth3]

...Also can't see why you would use 19 mill when referring to a spanner size and 25 ml when referring to a hole size - they are both millimetres? Actually I think mill is the better option if you have to use something other than mm

Except some places use "mil" for a thousandth of an inch. Avoid confusion by getting it right!

 

[FulmarJeddo]

I needed 24 spacers, with 25ml diameter hole
I found some on the internet, the price was £5, I thought it would be for a bag of 10 or so.
It was each.
I don't think the club would have been pleased if I had put a claim in for nylon washer/spacers at £120

Gosh, I could have made a fortune. I think the guy I spoke to would have given me the roll of pipe if I wanted it. Instead I said I just needed a few inches, he still cut off about a metre. I simply cut it to size with my chop saw.

 

[KREW2]

Doubt such fine semantics will help when your wife finds out what you’ve done to her LeCreuset chopping boards!

I'm kinda hoping she will not notice.

 

[zoidberg]

It's not just yoor spelin that's wonky.

I reckon your 'rithmetic is somewhat adrift, too, as yon .jpg you show is FIVE short of the 24 you say you wanted. How many 'wheels on your wagon'....?

 

[KREW2]

It's not just yoor spelin that's wonky.

I reckon your 'rithmetic is somewhat adrift, too, as yon .jpg you show is FIVE short of the 24 you say you wanted. How many 'wheels on your wagon'....?

Well spotted, if you turn the board over you will see more holes on the other side.

 

[KREW2]

Except some places use "mil" for a thousandth of an inch. Avoid confusion by getting it right!

Lets get this straight, I realise now, that mm is the abbreviation for millimeters, and I know I got it wrong.

I was giving the reason as to why, and you don't seem to understand, I type as I would talk.
When a colleague asks me to pass him a spanner, or vice versa, the conversation will go like this, phonetically.
"Can you please pass me a 23 mill spanner" They, or I wont say Millimeter.
The same would apply to a shaft.
"Is it one"?"
"No, It's 25 mill"

You see what Iv'e done? I have just shortened it to ml, not thinking it had another meaning.


Luckily most of the members read the whole thing an understod what i ment.



Just threw in a few more mistakes there to keep you occupied.