"APR" wrote in message
...

"Keith G" wrote in message
...

Keith, I expect the drill chuck you require will have a 3/8" UNF female
thread in the back of it to screw on to a 3/8"UNF male shank out of the
front of the drill. 3/8" UNF is 24 threads per inch (TPI), which will
likely be displayed on the chuck as something like Bosch Keyless Chuck 1 -
10 mm - 3/8 - 24 , 10mm being the maximum bit size, 3/8 being the thread
size and 24 identifing the threads per inch for attachment to the male
shank.



Yes, I believe you are exactly right! I don't need a keyless chuck as such,
but I see they've got both!

I shall probably order one tomorrow - there's no sign of mine freeing off
with the WD40 and it's a bit shagged anyway. No blame, no regrets - that
drill's some serious grunting over the years!!