Well , I found on of the hardest things to find , was a decent hex driver , unless you want to pay top dollar ..
But being some what budget minded [ id rather buy a $30 flashlight , than a $300 flashlight ] it there for befalls that Im not going to shell out top dollar for a hex driver .
Riddle me this , a 450 heli kit can be had for $29 [ thats so cheap ] but you can easily pay more than that for a hex driver to assemble it .
Anyhow , I've gone through a few disappointing hex drivers now , and this is one of them ..
First of all the tip was undersized , this is bad because if the tip is not hard enough , it will round off , making it useless ..
Now having just said that , I've had to cut the tip back some two times , and re-harden it two times as well , each time trying to harden it a little more . Now the problem is , with cheap steel , harden it too much and the tip will shatter [ brittle ] . so its a bit of a balancing act , hard but not so hard as to blow apart under load .
Well , I've had to cut it back to almost the very end , at least here its not undersized .
Also hardened it about as much as I dare , I've tested it and so far so good .
But a good hex driver its not , for the money , if you have the inclination to fix what's wrong with it ?
But the bad news is , Im batting a thousand for bad hex drivers ..
Bottom line pay $30 or more for a good one - if you can find a good one ..
I have to rely on Ebay as there is nothing local , so spending top dollar for a tool that might be top something in price only - I find hard to do .
Pictured are the other hex drivers I got :
Funny thing , 2mm and up there all ok , its just the smaller 1.5mm thats the pain ..
One on the left rounded almost right away , was ground hardened , and first use blew up like a hand grenade ..
Picture on right [not actual picture of my drivers as there not ball drivers / but same handle] , first set of drivers I got , kid of look impressive , but again the 1.5mm driver was undersized and rounded of after some use ..
Was cut back , and rounded of , cut back again as far as possible , heat treated , and so far seems to be ok .
So if your looking to buy , hex drivers - dont buy any of these in 1.5mm [ the larger ones seem to be ok 2mm+ ]