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Jet Geared Head Mill Drill for Precision Machining
- $2,139.00
- Brands JET
- Product Code: 351040
- Availability: In Stock
JET Geared Head Mill/Drill Product Overview The JET Geared Head Mill/Drill is a versatile metalworking machine designed to perform both drilling and milling operations in professional workshops, maintenance facilities, and fabrication environments. Its rigid square-column construction provides a stable machining platform, while the 6-speed geared head delivers dependable spindle power across a b..
Key Features of Jet Geared Head Mill Drill for Accurate Machining
JET Geared Head Mill/Drill
Product Overview
The JET Geared Head Mill/Drill is a versatile metalworking machine designed to perform both drilling and milling operations in professional workshops, maintenance facilities, and fabrication environments. Its rigid square-column construction provides a stable machining platform, while the 6-speed geared head delivers dependable spindle power across a broad range of applications.
An R8 spindle taper supports a wide selection of milling accessories, while the tilting head allows the spindle to be positioned for angled work. With a large cast-iron worktable and a 1.5 HP single-phase motor, this machine offers a practical combination of power, rigidity, and versatility for general-purpose machining.
Key Features
- Heavy-duty square-column construction with dovetail ways.
- 6-speed geared head for mechanical spindle power.
- R8 spindle taper for a broad range of milling tooling.
- 5-inch spindle travel for drilling and milling operations.
- Head tilts 90° left and right for angular machining.
- Large 9-1/2 x 32-1/4-inch worktable.
- Approximately 20-1/2 inches of longitudinal table travel.
- Approximately 8-1/4 inches of cross travel.
- Built-in fine downfeed for controlled spindle positioning.
- Internal depth gauge for drilling operations.
- Quick-select gear levers for convenient spindle-speed changes.
- Forward/reverse spindle control.
- Spindle guard and work lamp.
- 1.5 HP single-phase motor.
- 115/230V electrical configuration.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Machine Type | Geared-head square-column mill/drill |
| Drilling Capacity | 1-1/2 in. |
| Face Mill Capacity | 4 in. |
| End Mill Capacity | 3/4 in. |
| Swing | 19-11/16 in. |
| Maximum Spindle-to-Table Distance | 18-1/8 in. |
| Spindle Taper | R8 |
| Spindle Travel | 5 in. |
| Automatic Spindle Travel | 4-1/4 in. |
| Quill Diameter | 3 in. |
| Column Size | 7-7/8 x 7-5/8 in. |
| Number of Spindle Speeds | 6 |
| Spindle Speed Range | 65–1,550 RPM |
| Table Size | 9-1/2 x 32-1/4 in. |
| Longitudinal Table Travel | 20-1/2 in. |
| Cross Table Travel | 8-1/4 in. |
| T-Slots | 5/8 in. |
| Head Tilt | 90° Left / 90° Right |
| Motor Power | 1.5 HP |
| Voltage | 115/230V |
| Phase | 1 Phase |
| Drive Type | Geared head |
Specifications may vary depending on the exact JET model or stock number. Confirm the current manufacturer specifications for the specific machine configuration before purchase.
Geared Head Performance
The 6-speed geared head provides direct mechanical power transmission to the spindle. With a speed range of approximately 65–1,550 RPM, the machine can accommodate a variety of drilling and milling applications.
Lower speeds are useful when working with larger cutters or performing heavier cuts, while higher spindle speeds can be used with smaller tooling when appropriate for the material and cutter.
The geared transmission is also beneficial when consistent spindle torque is required during demanding machining operations.
R8 Spindle
The machine features an R8 spindle taper, a common interface for milling machines. This provides compatibility with a wide range of tooling and accessories.
Depending on the application, operators can use compatible:
- R8 collets
- End mills
- Drill chucks
- Boring tools
- Face mills
- Other R8 accessories
The machine is rated for approximately:
- 1-1/2-inch drilling
- 4-inch face milling
- 3/4-inch end milling
Actual machining capacity depends on workpiece material, tooling, spindle speed, feed rate, depth of cut, and workholding rigidity.
Rigid Square-Column Construction
The square-column design with dovetail ways provides a stable foundation for the head and spindle assembly. This rigidity helps the machine handle normal cutting forces during drilling and milling.
The design is well suited for:
- Face milling
- End milling
- Slotting
- Drilling
- Boring
- Counterboring
- General material removal
For the best results, workpieces should be securely clamped and cutting parameters selected appropriately.
Tilting Head
The milling head tilts 90° left and 90° right, providing additional flexibility for angular machining.
This feature can be used for:
- Angled holes
- Beveled surfaces
- Angular milling
- Specialized fixtures
- Non-standard machining setups
The head should always be securely locked in the selected position before machining.
Worktable and Travel
The machine is equipped with a 9-1/2 x 32-1/4-inch worktable, providing ample space for workpieces, vises, clamps, and fixtures.
The table provides approximately:
- 20-1/2 inches of longitudinal travel
- 8-1/4 inches of cross travel
The 5/8-inch T-slots allow compatible workholding accessories to be mounted directly to the table.
Spindle and Quill
The spindle provides 5 inches of travel, giving the operator useful vertical movement for drilling and milling operations. A 3-inch-diameter quill supports the spindle assembly.
The machine also incorporates a fine downfeed mechanism and internal depth gauge to assist with controlled drilling and spindle positioning.
Motor and Electrical Configuration
A 1.5 HP single-phase motor powers the machine. The motor is configured for 115/230V operation, providing flexibility for workshops with compatible electrical service.
The machine should be configured for the correct supply voltage before operation. Electrical installation should follow the manufacturer's requirements and applicable local electrical regulations.
Typical Applications
The JET Geared Head Mill/Drill is suitable for:
- Professional machine shops
- Fabrication shops
- Maintenance departments
- Equipment repair
- Tool rooms
- Prototype machining
- Small-batch production
- General metalworking
- Industrial maintenance
- Technical training
It is especially useful where a conventional drill press does not provide sufficient milling capability or table positioning flexibility.
Common Machining Operations
Drilling
Create holes using suitable drill tooling and an appropriate spindle speed.
Milling
Machine surfaces, edges, and other workpiece features with compatible milling cutters.
Face Milling
Produce flat surfaces using an appropriate face mill.
Boring
Enlarge and finish existing holes with suitable boring tooling.
Slotting
Machine slots and channels using compatible end mills.
Counterboring
Create stepped holes for fasteners and related applications.
Angular Machining
Use the tilting head for suitable angled machining operations.
Advantages for Professional Users
Mechanical Gear Drive
The geared head provides useful spindle torque across six selectable speeds.
R8 Tooling Compatibility
The R8 spindle supports a wide selection of commonly available milling accessories.
Rigid Construction
The square column and dovetail ways provide a stable platform for machining.
Large Worktable
The 32-1/4-inch table offers useful workspace for larger workpieces and fixtures.
Flexible Head Positioning
The 90° left/right head tilt allows additional machining configurations.
Dual-Purpose Capability
The machine combines drilling and milling functions, reducing the need for separate equipment.
Maintenance
Routine maintenance is important for preserving machine accuracy and extending service life.
Regularly inspect:
- Spindle and bearings
- Gear head
- Quill and fine downfeed
- Column and dovetail ways
- Table and T-slots
- Lead screws
- Electrical connections
- Lubrication points
Clean chips from the table and machine ways after use. Lubricate components according to the manufacturer's recommended maintenance schedule.
Safety Considerations
Always wear appropriate eye protection and use additional PPE appropriate for the material and machining operation.
Secure workpieces firmly with a suitable vise, clamp, or fixture. Never hold material by hand while drilling or milling.
Keep hands, loose clothing, jewelry, and hair away from rotating tooling and moving components.
Do not measure, adjust, reposition workpieces, or remove chips while the spindle is rotating.
Disconnect the electrical supply before performing maintenance, changing components, or accessing electrical or moving parts.
Why Choose the JET Geared Head Mill/Drill?
The JET Geared Head Mill/Drill combines the functions of a drill press and milling machine in a rigid, versatile platform. Its 6-speed geared head, R8 spindle, 1.5 HP motor, large worktable, 5-inch spindle travel, and tilting head provide the flexibility required for a wide variety of metalworking tasks.
For professional shops, maintenance departments, fabricators, and serious workshop users, it offers a practical solution for drilling, milling, boring, slotting, counterboring, face milling, and general machining operations.