gr 8.8 ht bolt steel which carbide tip

Brian

Can I also suggest you read this thread started buy you where you also stated smaller shank tools could not be had and several members directed you to suppliers. if you are not going to take notice of what replies you get maybe refrain from posting rather than wasting members time buy asking it all again a few months later.

Well sometime you have to stick pins in pontificators to get results but we have 1350 views in just one day so the silent majority really are interested in the Carbide non-intuitive jungle and how to put it to Maureen who was never intended for such duty - too slow and light duty

The 12mm shank problem may have been solved - and you HEARD THAT here

I dont agree this thread is a waste of space - I think viewers will have learnt a few things and thats what MEW is about

Edited By brian jones 11 on 06/10/2021 19:59:20

Here is an 8.8 bolt head faced off by hand with a 23 pence tip from Ali******s ,one real difference that you can positively identify from a £5 one is £4.77 in change.

John

Well done things like that make this thread all worthwhile

As I said some people get lucky some don't

Here are a couple of videos of some Banggood inserts struggling to cut a bit of cast iron, look at the light to see how much it is making the mill vibrate, different feeds, speeds and DOC made little difference.

Edited By JasonB on 06/10/2021 20:33:45

Indeed I have; the late JohnS was right, some people would be better off taking up knitting.

Andrew

If you buy hss beware the chinesium it’s rubbish, I recently bought over 60 inches of 5% cobalt blanks from makers incl eclipse , j&s, clarkson etc. for just over £20 plus post, more than I will use in the time I have left so why buy this other c..p that doesn’t work?

As I said on a previous thread of his, he is brilliant and knows it all, so don’t encourage him!

Brian Jones 11 is throwing insults again by calling people pontificators when they give advice he has asked for. Can we get this stopped?

Martin C

Thanx JB those vids were instructive

I noted the typical "smearing finish" on the CI and also the peeling up of the leading edge on the Ali, never seen either of those with HSS

I would not have said CI was a difficult machining mtl (except when it is a raw casting and you have to get through the sand scale). Indeed you dont need lube normally

However those BG tips were about same as my poor experience so far

What do you attribute the difference to? Can the original sharpness have any influence?

Sharpness and carbide are something of a black art it seems. Could BG tips be improved by diamond hone?

Or is it some kind of fake powder being used to make the inserts? Surely whispers in the market will know?

*********************************************

Previously I had ca 20 years doing business in the FE and I got to know the mindset

Lying cheating stealing IP is a national sport. Its tempting to think its directed against the West but that not strictly true IMHO. Its all fiercely competitive out there and they are just as likely to steal of each other as anyone. They will find ways of shaving cents off a product cost even though it degrades that product 50% for the customer

Factories produce for big names under strict QA. The rejects , which are supposed to be binned, find their way out the back door and on to EB BG Aliex etc

Factories making parts have an unsupervised night shift that carries on making these parts to supplement the counterfeit market

Auto parts I had a bad experience with an Isuzu truck. It needed track rod ends. Easy enought to get from local dealer in a branded box - blow me if these parts didnt fail inside 3 months. I couldnt understand it with sealed socket bearings should last 100k miles. I took one apart with a disc saw and to my shock saw that grease had been deliberately left out so just metal on metal

I had numerous totally unexpected failures of obscure parts - anything rubber. A brake vacuum diaphragm - wot?

And garages deliberately swapping out your genuine parts for fakes when you brought our car in for service

The list is endless

Some years ago when DVD R/W recordable discs were all the rage and they were touted as having a lifespan of 10+ years. I was getting disc that were failing inside 3 months. It took me a while trawling the web to find there were millions of faulty DVDs out which had poor quality dye fluid in the make up such that thus would fade quickly over time - not dense enough. and these were big brand names Panasonic Sanyo etc. It was impossible to be sure of a genuine product at the time - draw your own conclusions, saving a few fractions of a cent for extra profit

Anyone remember the scandal of the PRC baby formula milk - adulterating the product with nutritionally inert fillers

Miilions of babies affected

If you want many more examples of greedy dishonest practices PM me for links

So I am very jaundiced and suspicious

Lets face it, buying something on EB is a fraught affair, you have to spend an excessive amount of time examining the bona fides, what they are NOT telling you, how your refund can be compromised specially with Mazon. if the FB<99.5% probably walk away, watch for the dirty tricks, how many times has it be multiple listed masquerading as UK supplier (but its the same big warehouse in Soton) - same photos etc - it could take half an hour.

Q

Brian Jones 11 is throwing insults again by calling people pontificators when they give advice he has asked for. Can we get this stopped?

UQ

It can be stopped of course when seniors who should know better stop talking down to admitted amateurs because they dare to challenge

Often on boards like the if you ask a simple question you may not get mush interest let alone a response

Another way to ask a question is to make a bald statement and wait for it to be shot down then burrow into the reasoning

Just cos the questioner is inflammatory doesent make him a bad person nor the thread any less valuable

Superiors attitudes taken by some (I know things you dont and look how clever I am) are not helpful. Neither is making insulting remarks. Thats not in the Myford culture

If you cant contribute usefully then walk on by. As ive said before the silent viewers (1800 in 2 days) outnumber the activists 50:1. Carbide is a hot topic swathed in mystery and counter-intuitive - worse than gears

Fake cheesy HSS I havent come across but the Ive a box of tool pieces for over 20 years and cant remember buying any recently. I am prepared to believe they do exist but I would surely spot the different from first cut as I know how HSS should behave

Does the same apply to Carbide?

Edited By brian jones 11 on 07/10/2021 08:11:34

Please, can everyone play nicely.

That includes not to slipping in snide insults under the guise of fair comment, or broadsides of comment intended to prompt a heated exchange of views - that's trolling.

Being inflammatory may not make the information in a thread less valuable, but it devalues the whole forum, as most of those who come here do so in the hope of good-humoured, polite discussion.

I'm going to lock this thread as the useful content is being outweighed by the confrontational comments.

I think we can all do better than this.

Neil