dsb2014 Posted May 16, 2014 Share Posted May 16, 2014 again im stuck lol. i have a m6 thread thats well fecked so im gonna go next size up to m7 my dilemma is how do i go about it do i drill a 7m hole ten tap it thankz in advance peepz Link to comment Share on other sites More sharing options...
Moderator drewpy Posted May 16, 2014 Moderator Share Posted May 16, 2014 for metric the drill size is thread size less pitch. so for an M7 with 1.25 pitch you need a 5.75mm drill bit. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted May 16, 2014 Moderator Share Posted May 16, 2014 maybe a 5.5mm if it's in aluminium Link to comment Share on other sites More sharing options...
Preload Posted May 17, 2014 Share Posted May 17, 2014 If the threads have gone you may not be able the tap out to 7mm. Have you thought of recoiling it? this would keep it 6mm. Link to comment Share on other sites More sharing options...
Moderator drewpy Posted May 17, 2014 Moderator Share Posted May 17, 2014 If the threads have gone you may not be able the tap out to 7mm. Have you thought of recoiling it? this would keep it 6mm. depends where this stripped thread is I suppose. helicoil/timeserts would do for side cases Link to comment Share on other sites More sharing options...
dsb2014 Posted May 17, 2014 Author Share Posted May 17, 2014 yeah its for the right side clutch case. ???? im going to use a m7 1.00 so id need 6mm ??? do the drill bit need to be metric as well Link to comment Share on other sites More sharing options...
Moderator Airhead Posted May 17, 2014 Moderator Share Posted May 17, 2014 i'd give it to someone to do for you before you make a balls of it Link to comment Share on other sites More sharing options...
jimmy Posted May 17, 2014 Share Posted May 17, 2014 Is the thread totally fekked. Can you not just run a 6mm tap down it to clean the existing threads Link to comment Share on other sites More sharing options...
neversaydie Posted May 17, 2014 Share Posted May 17, 2014 I guess that you'll also have to open out the hole in the cover too If youve not done owt like this before, then give it to someone who has Too many things to be done wrong Link to comment Share on other sites More sharing options...
Preload Posted May 17, 2014 Share Posted May 17, 2014 I wouldn't tap to 7mm there shouldn't be enough metal left to make a decent thread it will be weak and fail. Link to comment Share on other sites More sharing options...
blackhat250 Posted May 17, 2014 Share Posted May 17, 2014 Yeh" helicoil kit.. gives you drill bit - tap -insert- tab breaking tool. you can get it right, without guess work,, http://www.ebay.co.uk/itm/RDGTOOLS-M6-X-1-HELICOIL-KIT-THREAD-REPAIR-KIT-/370774984037?pt=UK_Hand_Tools_Equipment&hash=item5653e94565 1 Link to comment Share on other sites More sharing options...
Preload Posted May 18, 2014 Share Posted May 18, 2014 That not a bad price for a single kit. Link to comment Share on other sites More sharing options...
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