HYPER-TECH
Plastic
- Joined
- Oct 13, 2020
Tapping 3/4-12 ACME 5C x 4.0" thru Heat Treated 4130
Success Stories : GO
I wish it were that easy, we have been struggling with tapping this thread for over a week with no joy. Spent over $600 on a custom carbide tap that starts fine and ends oversize. The gauge provided by our customer gets tight half way thru and the "NO GO" goes on the opposite side. Using Molly-D to cut with. Just can't figure out why it's getting tight then opening up. Tap appears to be in good shape. Does anyone have a suggestion?
Success Stories : GO
I wish it were that easy, we have been struggling with tapping this thread for over a week with no joy. Spent over $600 on a custom carbide tap that starts fine and ends oversize. The gauge provided by our customer gets tight half way thru and the "NO GO" goes on the opposite side. Using Molly-D to cut with. Just can't figure out why it's getting tight then opening up. Tap appears to be in good shape. Does anyone have a suggestion?