Drill and Tap holes up to four times faster than traditional methods. One piece drill/tap design ensures proper hole for tap size. Long length drills and taps up to 1/2-inch material. Quick change adapter included. Constructed of hardened high speed steel.
I was very disappointed with this product - It literally fell apart on first use and I was able to knock the broken end off with a small screwdriver - That's right, I broke the end of the Just rip the tap apart with a screwdriver - it's quite brittle in my opinion