Counter-Rotation in Gun Drilling: Relative Speed and Bore Evidence
Calculate relative rotation for a counter-rotating tool and workpiece, then distinguish speed arithmetic from evidence of improved bore geometry.
Setup
Gun Drilling with Lower Pressure: Liquid Supply and Spray Mist
Distinguish lower-pressure liquid supply from a documented compressed-air/oil spray-mist system, and assess the named tool and application scope.
BTA Machine Alignment: Keep the Reference Relationships Separate
Plan BTA installation verification around spindle, tube support, entry guidance and workpiece datums, with identified measurement references.
Deep Hole Drilling Mistakes: Three Handover Mismatches to Check
Find drawing, CAM-selection and measurement-scope mismatches without treating an editorial checklist as a ranked list of proven failure causes.
Ejector Drilling on a CNC Lathe: Guidance and Installation Boundaries
Plan the ejector tool train, entry guidance, fluid circuit and inspection route for an identified CNC lathe installation.
Gun Drilling Alignment: Location, Direction and Repeatable Offset
Investigate gun drilling alignment with fixed coordinates, entry-location and direction examples, then compare documented setup changes with bore …
Gun Drilling Pilot Holes and Guide Bushings: Entry Guidance
Compare a gun drilling pilot hole with an external guide bushing; identify entry references, tool guidance and the dimensions requiring tool-specific …
Whip Guides in Gun Drilling: Support Outside the Workpiece
Distinguish external whip-guide support from entry and in-bore guidance, and follow the supported tool spans as drilling advances.