250 DRILL BUSHING TYPE STRAP DUPLICATOR (HOLE FINDER)
This tool provides an accurate method for drilling duplicate matching holes in overlapping sheets. Hole to be duplicated is drilled through bushing when pilot is in place.
255 DRILL BUSHING INVERTED PILOT TYPE STRAP DUPLICATOR (HOLE FINDER)
These tools are identical to the 250 series, except that the pilot is inverted to allow hole duplication in places where the sheets cannot be pried apart.