Taps And Dies.
Posted 15 January 2020 - 07:39 AM
Posted 15 January 2020 - 09:04 AM
Is there some missing or are some 2step?
Have you taught about machine taps? They aren't conical so to tap right to the bottom of a hole for example.
Ps: not sure they are called like that in English tho...
I know them as Taper, Intermediate and Bottom or Plug.
Whitworth used to make a set of 5.
The first had a pilot that fitted the tapping hole, so that the thread was cut square to the hole.
Then the usual 3, but slightly undersize, which was very handy for holding studs in place.
The 5th was the "Finish" that took out the last few thou.
Posted 16 January 2020 - 01:54 PM
Have ordered myself the same set but directly from the manufacturer
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users