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Jet Geared Head Mill Drill With Power Downfeed
- $2,372.00
- Brands JET
- Product Code: 351041
- Availability: In Stock
JET Geared Head Mill/Drill with Power Downfeed Product Overview The JET Geared Head Mill/Drill with Power Downfeed is a versatile metalworking machine designed to handle both drilling and milling operations in professional workshops. Its rigid square-column construction provides a stable platform, while the 6-speed geared head delivers mechanical power directly to the spindle. A built-in power ..
Key Features of Jet Geared Head Mill Drill With Power Downfeed
JET Geared Head Mill/Drill with Power Downfeed
Product Overview
The JET Geared Head Mill/Drill with Power Downfeed is a versatile metalworking machine designed to handle both drilling and milling operations in professional workshops. Its rigid square-column construction provides a stable platform, while the 6-speed geared head delivers mechanical power directly to the spindle.
A built-in power downfeed provides controlled automatic spindle movement, making the machine particularly useful for repetitive drilling, boring, and other operations where consistent feed is important. With an R8 spindle, tilting head, large worktable, and 1.5 HP motor, this JET mill/drill provides the flexibility needed for general-purpose machining.
Key Features
- Heavy-duty square-column construction with dovetail ways.
- 6-speed geared head for mechanical spindle power.
- Power downfeed for controlled and repeatable quill movement.
- R8 spindle taper supports a wide range of milling tooling.
- Head tilts 90° left and right for angled 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 calibrated fine downfeed for manual spindle control.
- Internal depth gauge for convenient drilling-depth reference.
- Quick-select gear levers for spindle-speed changes.
- Forward/reverse spindle control.
- Spindle guard and work lamp.
- 1.5 HP, 115/230V, single-phase motor.
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. |
| 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 |
| Power Downfeed | Yes |
Specifications can vary according to the exact JET model or stock number. Verify the manufacturer's current specification sheet before ordering.
Geared-Head Drive
The machine's 6-speed geared head provides direct mechanical power transmission from the motor to the spindle. The 65–1,550 RPM speed range gives operators multiple options for matching spindle speed to the cutter and workpiece.
Lower speeds can be selected for larger tooling and heavier cuts, while higher speeds are suitable for smaller cutters and appropriate finishing operations.
The geared transmission is particularly useful for applications where maintaining spindle torque is important.
Power Downfeed
The integrated power downfeed provides automatic quill movement during drilling and related operations. Instead of manually feeding the spindle throughout the cut, the operator can use controlled automatic feed for more consistent results.
Power downfeed is useful for:
- Repetitive drilling
- Boring
- Counterboring
- Controlled-depth machining
- Production-oriented work
- Consistent hole-making
A fine manual downfeed is also available when the operator needs precise control over spindle movement.
R8 Spindle
The R8 spindle taper is a common milling-machine tooling standard and allows the use of a wide range of compatible accessories.
Potential tooling includes:
- R8 collets
- End mills
- Drill chucks
- Boring tools
- Face mills
- Other R8-compatible accessories
The machine is designed for approximately:
- 1-1/2-inch drilling capacity
- 4-inch face-mill capacity
- 3/4-inch end-mill capacity
Actual cutting capacity depends on the material, tooling, spindle speed, feed rate, depth of cut, and workholding setup.
Square-Column Construction
The rigid square-column design with dovetail ways provides a stable foundation for the head and spindle assembly. This construction helps the machine handle the cutting forces generated during drilling and milling.
It is suitable for operations including:
- Face milling
- End milling
- Slotting
- Boring
- Drilling
- Counterboring
- General material removal
Proper workholding remains essential, especially when performing heavy cuts.
Tilting Head
The head tilts 90° to the left and 90° to the right, allowing the spindle to be positioned for angular machining operations.
This capability can be useful for:
- Angled holes
- Beveled surfaces
- Angular milling
- Specialized fixtures
- Non-standard machining setups
Always lock the head securely before starting a machining operation.
Worktable and Travel
The machine features a 9-1/2 x 32-1/4-inch worktable, providing useful space for mounting workpieces, vises, clamps, and fixtures.
The table offers approximately:
- 20-1/2 inches of longitudinal travel
- 8-1/4 inches of cross travel
The 5/8-inch T-slots allow compatible workholding equipment to be securely mounted to the table.
Motor and Electrical Configuration
The machine is powered by a 1.5 HP single-phase motor with a 115/230V configuration.
This provides installation flexibility for workshops with suitable electrical service. The machine should be configured for the correct voltage before operation, with electrical installation performed according to applicable codes and manufacturer requirements.
Typical Applications
The JET Geared Head Mill/Drill with Power Downfeed is suitable for:
- Professional machine shops
- Fabrication shops
- Maintenance departments
- Equipment repair
- Tool rooms
- Prototype development
- Small-batch production
- General metalworking
- Industrial maintenance
- Technical training
It is particularly useful where a standard drill press does not offer enough rigidity or milling capability.
Common Machining Operations
Drilling
Produce holes using appropriate drill tooling and controlled power downfeed.
Milling
Machine surfaces, edges, and other workpiece features using compatible milling cutters.
Boring
Enlarge and finish existing holes with controlled spindle movement.
Face Milling
Produce flat surfaces using a suitable face mill.
Slotting
Create slots and channels with compatible end mills.
Counterboring
Produce stepped holes for fasteners and other components.
Angled Machining
Use the tilting head for suitable angular operations.
Benefits for Professional Users
Controlled Spindle Feed
The power downfeed helps maintain consistent spindle movement during repetitive drilling and boring.
Geared-Head Power
Six spindle speeds provide useful torque across a range of machining operations.
Rigid Construction
The square column and dovetail ways provide a stable platform for drilling and milling.
R8 Tooling Compatibility
The R8 spindle supports a broad selection of commonly available milling accessories.
Large Worktable
The 32-1/4-inch table provides useful working space for fixtures and larger workpieces.
Flexible Head Positioning
The 90° left/right head tilt expands the machine's machining capabilities.
Maintenance
Regular maintenance helps maintain machine accuracy and extend service life.
Inspect:
- Spindle and bearings
- Gear head
- Quill and power-downfeed mechanism
- Column and dovetail ways
- Table and T-slots
- Lead screws
- Electrical connections
- Lubrication points
Clean metal chips from the table and ways after use. Keep the machine properly lubricated according to the manufacturer's 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 during drilling or milling.
Keep hands, loose clothing, jewelry, and hair away from rotating tooling and moving machine 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 with Power Downfeed combines the capabilities of a heavy-duty drill press and milling machine in one versatile platform. Its 6-speed geared head, automatic power downfeed, R8 spindle, rigid square-column construction, large worktable, tilting head, and 1.5 HP motor make it well suited for professional and serious workshop applications.
For users performing drilling, milling, boring, slotting, counterboring, and general metalworking, this machine provides the power, rigidity, and flexibility needed for a wide range of machining tasks.