Tap from #4- 1/2"40" swingReaming & Deburring
Rigid Tap Collets: 1/8", 3/16", 1/4", 5/16", 3/8", 1/2",
Clutch Tap Collets: m3, m4, m5, m6/8, m10, m12
Quick set up vises
Make sure tapping head is perpinduclar to hole
Use apporiate style tap (members responsibility) for desired thread
Use appropirate size collet for tap
Always use cutting fluid