Self drilling screw for building construction material and sheet metal screws

≡ Self drilling screw for building construction material and sheet metal screws ≡

World top-level drilling screw
Punches through thick metal plates without a preparation hole (up to 9mm plates)
Originally designed screw edge (made in Japan)
This screw does not bend, slip or drop out
Can be used with a square bit or cross bit

≡Product Description≡

YouTube http://www.youtube.com/watch?v=9-4y7GJhiDM

≡Video demonstration≡

YouTube http://www.youtube.com/watch?v=C-v3TmRK7uU