Sovilok Manufacturing

Installation Step-drill

This is a specially ground step drill that is used to drill the horizontal hole into the edge of the door on the hinge side. By utilizing this Step Drill, the installer can drill the 3/8" hole and the 1/2" hole required to install the male pin into the edge of the door. A lock collar ensures the precise depth required for both diameters. A time-saving advantage tool

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