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Renthal drilling and tapping - Printable Version

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Renthal drilling and tapping - WayneUK - 03-02-20

I've just fitted some renthal 785's and was wondering what drill and tap I will need t be able to fit original bar ends?


Re: Renthal drilling and tapping - Mustang - 03-02-20

It’s m16 x 1.5 


Re: Renthal drilling and tapping - robbo - 04-02-20

Yep, M16 at 16 tpi(threads per inch).


Re: Renthal drilling and tapping - WayneUK - 04-02-20

when i took it to a engineer he told he it was a M16 x 1.5 taper tap and a 14.5 mm drill bit?


Re: Renthal drilling and tapping - robbo - 04-02-20

If you have access to an engineering workshop, I believe the proper way is to predrill the bars before tapping them. My pal on the otherhand just wound the tap into the bar and it worked out fine. I paid for the workshop process to the tune of £35 :eek . My pals bars cost him a pint in the pub. :lol  Pretty sure the 1.5 x the tap size is the same as 16tpi, but stand to be corrected Smile .


Re: Renthal drilling and tapping - WayneUK - 04-02-20

(04-02-20, 09:38 AM)robbo link Wrote: If you have access to an engineering workshop, I believe the proper way is to predrill the bars before tapping them. My pal on the otherhand just wound the tap into the bar and it worked out fine. I paid for the workshop process to the tune of £35 :eek . My pals bars cost him a pint in the pub. :lol  Pretty sure the 1.5 x the tap size is the same as 16tpi, but stand to be corrected Smile .
so he just tapped them without drilling them first?, has anyone else done it this way?



Re: Renthal drilling and tapping - WayneUK - 04-02-20

Is this the right tap I'll need?
https://www.amazon.co.uk/ATOPLEE-Metric-Thread-Right-M16x1-5/dp/B01CHRFR6A/ref=sr_1_2?keywords=M16+x1.5+tap&qid=1580828723&sr=8-2



Re: Renthal drilling and tapping - 74eldiablo - 04-02-20

Well and truly rinsed for £35...even the receptionist could do that in 5 mins with all the right tackle


Re: Renthal drilling and tapping - WayneUK - 04-02-20

yeah watched a video on doing it and it only took 2 mins to do one side


Re: Renthal drilling and tapping - robbo - 04-02-20

(04-02-20, 06:52 PM)74eldiablo link Wrote: Well and truly rinsed for £35...even the receptionist could do that in 5 mins with all the right tackle
I nearly walked out and left him with the bars. Apparently workshop time is £70 an hour, minimum charge half an hour. Should have asked first I suppose, but thought it was a 5 minute job and would be priced accordingly. Lesson learnt, for sure. :'(


Re: Renthal drilling and tapping - WayneUK - 05-02-20

Well, Tap came today so had a go at tapping them, and everything went real smoooth, and bar ends fit perfectly  :thumbup