Hi, everyone help me please... what is spindle speed to be set for M2 taping in mild steel material when it is done on machine not by hand and what is maximum bore size should be maintained if it should be for PPG
The internet is your friend:Tap Speed Chart - New York Twist Drill Inc.
Thanks for your response... as per the chart, i set up the speed but still tap is broken
"M2 taping in mild steel" is hardly enough information to allow anybody to give advice to you.
There are numerous charts, books, web sites and other resources that can be used to learn about proper feed rates and drilling and tapping holes in materials.
I suggest that you search for some of these resourses instead of asking strangers to solve unknown problems with unknown materials under unknown conditions.
One parting piece of advice: Slow the speed down.
What was the size of your pilot?
Blind or through tap?
New or "salvaged" tap?
Pittsburg Plate Glass Company?
Sorry.. i wrongly mentioned PPG (Plain Plug gauge) instead TPG (thread plug gauge) which is used to measure thread quality
"If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance." -- Orville Wright