SNB-C04 taper pin question
Posted: Wed Jun 24, 2020 5:31 pm
by richd
For the AN386-2-12 taper pin you use a #2 taper reamer to finish the hole.
I have the reamer. Wow! $95.
Do you have any suggestions on how to drill the hole?
What drill size bits would you drill the hole with before using the number 2 reamer?
I saw a good article written by Eric Seber on the #1 taper reamer. http://www.sonexfoundation.com/uploads/ … lation.pdf
He “started with a #40 steel bit, updrilled to a #30, and updrilled once more to a #11 hole size. The #11 bit is just slightly smaller than the small end of the taper reamer. I then inserted the reamer and opened up the hole making sure to make several light passes so not to oversize the hole.”
What would the equivalent be for the #2 taper reamer?
Rich
Re: SNB-C04 taper pin question
Posted: Mon Jun 29, 2020 1:41 pm
by Spaceman
I just updrilled to a size approximately the same as the small end of the tapered reamer. Also, I was able to drill all the holes for the #1 and #2 tapered pins all with the #1 reamer, just by using more of the length of the reamer.
Re: SNB-C04 taper pin question
Posted: Wed Aug 11, 2021 3:38 pm
by SP1
Thanks Chris,
You saved me 90 bucks!
Some quick math shows that the slope of the taper to be nearly identical
Re: SNB-C04 taper pin question
Posted: Wed Aug 11, 2021 11:05 pm
by sonex892.
SP1 wrote:Thanks Chris,
You saved me 90 bucks!
Some quick math shows that the slope of the taper to be nearly identical
B & S taper pins sizes 1 to 9 are actually an identical taper, they are all 1/2" per ft. So definitely no problems using other B & S reamer sizes if they get the job done.
Steve
Re: SNB-C04 taper pin question
Posted: Thu Aug 12, 2021 2:01 pm
by OneTallShort
Speaking of saving some money, the ASI tool sharing #1 B&S reamer is available to the next person needing it…just let me know who needs it next.