Gun Drill Oils for Deep Hole Drilling

Gun drill oils are low-viscosity cutting oils designed for deep hole drilling applications. They ensure efficient chip evacuation, stable cooling, and reliable tool performance in high-precision drilling operations.

Available in ISO 12, 24, and 36 grades, these oils support straight hole accuracy, reduced friction, and consistent results across extended drilling depths.

Total found: 3

Only new

Only in stock

Light Machining Oil ISO 12 EASYCUT NMO121 - 5 Gallon

NMO121-5In stock

CA$156.89

excl. taxesCA$160.09

Medium Machining Oil ISO 24 EASYCUT NMO241 - 55 Gallon

NMO241-55In stock

CA$1,413.38

excl. taxesCA$1,442.22

Heavy Machining Oil ISO 36 EASYCUT NMO361 - 5 Gallon

NMO361-5In stock

CA$201.43

excl. taxesCA$205.54

Gun Drill Oils for Deep Hole Drilling

Gun drill oils are specialized low-viscosity cutting oils designed for precision deep hole drilling. They provide the lubrication, cooling, and chip evacuation required to maintain straightness, surface finish, and tool life at high depth-to-diameter ratios.

These oils are used in demanding drilling operations where stable performance and consistent chip removal are critical for accuracy and reliability.

What Gun Drill Oil Does

Chip evacuation: removes chips efficiently through the drilling channel to prevent clogging and tool failure.
Friction reduction: forms a stable lubricating film between tool and workpiece.
Heat removal: dissipates heat from the cutting zone to maintain dimensional stability.

Selecting Viscosity for Your Process

Choosing the correct viscosity is essential for stable deep hole drilling performance. Selection depends on tool diameter, drilling depth, material, and machine parameters.

ISO 12: low viscosity for small diameters, deep holes, and finishing operations where fast flushing is required.
ISO 24: general-purpose option providing a balance between lubrication and flow.
ISO 36: higher viscosity for larger diameters and heavier cutting conditions requiring stronger lubrication film.

Maintaining the correct operating temperature (typically 30–50°C) helps stabilize viscosity and improve machining consistency.

Best Practices for Deep Hole Drilling

Maintain proper flow and pressure: ensures continuous chip evacuation and tool stability.
Use effective filtration: prevents recirculation of fine particles that cause wear.
Match viscosity to application: incorrect oil grade can lead to poor flushing or film failure.
Control temperature: stabilizes oil performance and reduces thermal distortion.

Common Issues and Solutions

Chip clogging: improve flushing with lower viscosity or increased flow.
Excessive heat: ensure proper coolant delivery and stable operating temperature.
Tool wear: check lubrication quality and filtration condition.
Poor hole accuracy: stabilize pressure, flow, and oil viscosity.

Applications

Deep hole drilling of steel and alloys
Precision drilling in automotive and aerospace components
High aspect ratio drilling operations

What is gun drill oil used for? Why is low viscosity important? How do I choose the right viscosity? Can gun drill oil be reused?

Gun Drill Oils for Deep Hole Drilling

These oils are used in demanding drilling operations where stable performance and consistent chip removal are critical for accuracy and reliability.

Selecting Viscosity for Your Process

Choosing the correct viscosity is essential for stable deep hole drilling performance. Selection depends on tool diameter, drilling depth, material, and machine parameters.

ISO 12: low viscosity for small diameters, deep holes, and finishing operations where fast flushing is required.

ISO 24: general-purpose option providing a balance between lubrication and flow.

ISO 36: higher viscosity for larger diameters and heavier cutting conditions requiring stronger lubrication film.

Maintaining the correct operating temperature (typically 30–50°C) helps stabilize viscosity and improve machining consistency.

Best Practices for Deep Hole Drilling

Maintain proper flow and pressure: ensures continuous chip evacuation and tool stability.

Use effective filtration: prevents recirculation of fine particles that cause wear.

Match viscosity to application: incorrect oil grade can lead to poor flushing or film failure.

Control temperature: stabilizes oil performance and reduces thermal distortion.

Gun Drill Oils

Gun Drill Oils for Deep Hole Drilling

What Gun Drill Oil Does

Selecting Viscosity for Your Process

Best Practices for Deep Hole Drilling

Common Issues and Solutions

Applications

Gun Drill Oils for Deep Hole Drilling

What Gun Drill Oil Does

Selecting Viscosity for Your Process

Best Practices for Deep Hole Drilling

Common Issues and Solutions

Applications

Related Pages

FAQ - Gun Drill Oils