While using a grinder to remove an obstinate chuck from my drill I damaged the thread that the chuck screw onto. About 25% of the thread is now flat. Should I:
a) Ignore the damage and fit a new chuck it'll be ok
or
b) replace the gearbox in the drill because that is what the damaged thread comes out of?

All opinions gratefully received.

Nowadays, if you are considering fixing something, it suggests it is not cheap crap from you know where. A repair would generally be based on whether I can get the parts and have the skills to fit them (YouTube is great for these). I’ve had plenty of Black and Decker tools from the UK over the years but now those factories and jobs are gone I cannot get spares as the tools die off. As for the fix itself, it will depend on how much thread the chuck will need to bite onto. Only you can see that but given it was exposed already for you to grind, it was not in use already?

Thanks for the reply.

The chuck refused to be screwed off its thread despite all my best efforts following you tube videos. I tried everything before I resorted to using a grinder to first of all cut away as much of the chuck as possible using a cutting disc and then grinding off the remainder with a grinding disc and in so doing I accidentally damaged the thread that emerges from the drill's gearbox. The thread only became exposed when I finally screwed off what was left of the chuck. As I say, about 25% of the thread has been ground off.Considering fitting a new chuck with some kind of thread lock. The drill is a Makita Cordless DHP453. The old chuck was slipping so I decided to renew it just to see if I could, after all, You Tube videos give the impression its straightforward.

I’m finding electrical tools are not what they used to be….half the time it’s just not worth the effort…I must admit my impact driver was a revelation for the decking I was doing.
I have eleven drills four are Black & Decker and one of those was from 1974 ‘resting’ now, haven’t got the heart to part with it.
Had several Bosch drills and totally unimpressed and none lasted the course.

Bosch blue are the ones to have, the green ones are not worth a light. I still got a Bosch blue hammer drill my dad gave me just before he passed. Solid piece of kit.

Could it be one type were made in Germany and the green stuff in China?

I think the idea is that the green ones are made for the DIY market and the blue ones for professional users. Dont know where they are made. These days probably in the far East. The difference in price can be eye watering. I am just a DIYer but my dear old dad always used to believe in the importance of buying "good gear" because it would last. The drill I inherited is the only Bosch tool I possess. My other stuff is Makita...not that I have loads, I dont.

They are made on China, the green ones that is.
Oddly enough my most used drill despite having fancy Dan ones is one I picked up in ALDI eight years ago in is a tough old bird, it appears most of these types of drill are main manufacturers previous seasons models rebranded.

We have adopted a throw away society nowadays, goods are not made to last or worth repairing and that’s if you can get the spare parts. You will find most components in electrical goods are made in S.E. Asia and assembled in other countries. You have all the different makes of what ever but open them up and the components are made by the same manufacturer at some far flung place.

if you want any tools find someone where the snap on tools man goes and get em to buy you stuff. many have seriously long guarentees on them and if you are short of money up frontthey can be purchased on terms.

Probably the most expensive tools ever from Snap On, not for the average DIY person.

they might be but like everything in life you get what you pay for. even if you use em twice a year you can have confidence in them as a broken tool is worse than not having one. at times the average DIY person has too many tools and even proffesionals have some they never actually use.