DEEP HOLE DRILLINGPRACTICAL TECHNICAL REFERENCE
Technical Reference

PRACTICAL TECHNICAL REFERENCE

Deep Hole
Drilling Guide

Method Selection · Cutting Parameters · Troubleshooting · Material Guides · Machine Selection
3Core MethodsGundrilling · BTA · Ejector
>10:1L/D ThresholdDeep hole definition
0.5–2000mmDiameter RangeMicro to large bores

CORE PROCESSES

Core Processes

58 guides
★ FeaturedMethod Selection WizardCompare & decide★ FeaturedGundrilling ProcessSingle-lip external chip★ FeaturedBTA Drilling ProcessSingle-tube internal chip★ FeaturedEjector DrillingDouble-tube DTSOther MethodsTrepan · Skive · Pull★ FeaturedFeeds & Speeds TablesVc · feed · depth factor★ FeaturedCoolant System GuidePressure · flow · filtrationTool Geometry & CoatingsDrill types · guides · coatings★ FeaturedTolerances & QualityIT grades · Ra · straightness★ FeaturedMaterial Parameters RefQuick-lookup tableChip Shape DiagnosisIdentify & adjust★ FeaturedTroubleshooting GuideSymptoms · causes · fixesCNC ProgrammingG73 · G83 · custom macroCutting FluidsOil · emulsion · syntheticToolholding & RunoutShrink · hydraulic · colletGuide BushingsTypes · setup · tolerancesIndustry Deep DivesBarrels · cylinders · moldsEDM DrillingSpark erosion · micro holesCase StudiesReal-world resultsFinishing OperationsHone · ream · burnishAerospace DrillingLanding gear · turbinesGun Barrel DrillingRifle bores · rifling★ FeaturedMicro Deep Hole DrillingSub-mm · high aspect ratioPilot Holes & StartingEntry · bushings · bell-mouthDrilling vs EDM/LaserCompare alternative methods★ FeaturedGundrill vs Twist DrillWhen to switch★ FeaturedHow Deep Can a Gundrill GoL/D limits★ FeaturedGundrill Speeds & FeedsParameters★ FeaturedBTA vs EjectorSTS vs DTSHydraulic CylindersBarrel drillingEV Motor ShaftsRotor shaft holesMedical ImplantsBone screws & instrumentsMold Cooling ChannelsWaterlines · P20 / H13 / SKD61Oil & Gas DownholeTool components · Inconel★ FeaturedWhat Is Deep Hole DrillingDefinition & fundamentals★ FeaturedGundrill vs Deep Hole DrillingTerminology clarified★ FeaturedSkive & Roller BurnishingOne-pass bore finishingDeep Hole HoningCrosshatch & final sizeGun ReamingDeep-hole reamersTrepanning Deep HolesSolid core recoveredBlind Hole DrillingDead-end boresDeep Hole TappingThreads at depthBroken Tool RecoverySave the partCrankshaft Oil HolesAngled galleriesFuel Injector HolesSub-mm nozzlesTurbine Shaft BoresMetre-long center boresValve Block DrillingCrossing galleriesTube Sheet DrillingHundreds of holesCamshaft Oil HolesLobe & gear feedConnecting Rod Oil HolesRod galleriesTransmission Shaft GalleriesMulti-spindle feedsTurbocharger Oil HolesBearing oil feedsPiston Cooling GalleriesDiesel oil galleriesDental Implant DrillingTitanium micro holesGeothermal DrillingGround-source bores★ FeaturedWhat Is BTA DrillingSingle-tube system★ FeaturedWhat Is Ejector DrillingDouble-tube systemDissimilar Stack DrillingCFRP / Al / Ti one-shot

MATERIAL-SPECIFIC GUIDES

Materials by Type

17 guides

EQUIPMENT & REFERENCE

Equipment & Reference

21 guides

DESIGN & ECONOMICS

Design & Economics

14 guides

INTERACTIVE TOOLS

Calculators & Tools

11 tools · view all →