Gun Drilling is a process that uses long cutting tools to produce holes at high depth-to-diameter ratios. Cobore has over 25 years of experience developing techniques to achieve D:d ratios up to 800:1 while holding extremely tight positional tolerances.

Cobore specializes in holding tight positional requirements for: Thru, Blind, Concentric, Eccentric, Angled, Intersecting & Cross Holes.

Size Range: .093" to 1.50" diameters (larger diameters with BTA drilling)

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