Gun Drill Bushing Inserts (GDI)

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Gun Drill Bushing Inserts (GDI) are precision components designed for use with gun drill liner (GDL) bushings in holemaking operations, compatible with El Dorado, DeHoff, and Lahr gun-drilling machines. These inserts fit into liner bushings to create versatile two-piece bushing assemblies. Offering flexibility, a single liner bushing can accommodate various inserts, allowing for quick ID adjustments of drill bushings by simply swapping inserts—ideal for changing drill sizes or replacing worn parts. Installed in fixtures, these bushings accurately guide, position, and support drill bits, ensuring straight, precise holes. They effectively prevent drill wandering or bending upon entry into the workpiece, while optimizing chip clearance and reducing the likelihood of workpiece damage.

Decimal-Inch Standard-Wall Gun Drill Bushing Inserts

Fractional-Inch Standard-Wall Gun Drill Bushing Inserts

Letter Size Standard-Wall Gun Drill Bushing Inserts

Metric Standard-Wall Gun Drill Bushing Inserts

Wire Size Standard-Wall Gun Drill Bushing Inserts