TY  - RPRT
TI  - Self-Advancing Step-Tap Drills
AU  - Pettit, Donald R.
AU  - Camarda, Charles J.
AU  - Penner, Ronald K.
AU  - Franklin, Larry D.
PY  - 2007
UR  - https://ntrs.nasa.gov/citations/20090040808
ID  - 20090040808
ER  -