JET 3/4 HP Drill Press: What Owners Should Check Before Buying or Repairing

When a JET drill press carries a 3/4 HP motor, you are looking at one of JET’s floor-standing machines, the JDP-17MF and the newer JDP-17 among them. These are substantial presses built to drill large bits and work metal, and they hold up for years. But whether you are buying one new, buying used, or maintaining one you own, there are specific things worth checking, because even a well-built floor press has parts that wear and used examples that hide problems. This is what owners should check on a JET 3/4 HP drill press before spending money.

The JET 3/4 HP class is represented by floor models like the JDP-17MF (16-1/2-inch swing, 16 speeds, MT2 spindle, 4-3/8-inch travel) and the JDP-17 (16-7/8-inch swing, 16 speeds, poly-V belt drive, 5-inch travel, LED light and laser). Both use a 3/4 HP motor on 115V (the JDP-17MF also wires for 230V), a 5/8-inch keyed chuck, and a cast-iron head and base. These are current JET products with a long warranty, though used examples are common.

Straight answer: on a new machine, confirm you have chosen the right model for your work and that assembly is square and complete. On a used one, check the spindle and quill, the motor, the belt drive, the table and column, and completeness. The 3/4 HP power is real, but it is still a wood-and-metal floor press, not a heavy geared-head machine.

Which 3/4 HP JET you are looking at

JET has sold more than one 3/4 HP floor press, so identify the model first. The JDP-17MF uses a hinged-belt drive and a 13-3/4-inch table and wires for 115 or 230V. The newer JDP-17 steps up to a 5-inch spindle travel, a poly-V belt with one-handed tensioning, a large 14-by-19-inch table, and built-in LED light and laser. Both are 3/4 HP and 16-speed, but their parts, tables, and features differ, so match the exact model before ordering anything or comparing used prices. The nameplate and the stock number are the reliable identifiers.

Before buying used: the checklist

Run through these with the machine running if possible:

1. Spindle and quill: Extend the quill and check for smooth travel and minimal runout. A worn quill is the costliest fault.
2. Motor: It should start promptly, run quietly, and hold speed. Hums, hesitation, or noise are warnings.
3. Belt drive: Inspect the belt for glazing or cracks and the pulleys for damage. On the JDP-17, confirm the one-handed tensioning works.
4. Table and column: Confirm the cast table is flat and un-cracked, the crank-operated height adjustment works, and the table locks solidly and tilts.
5. Completeness: Verify the chuck, guard, feed handle, and (on light-equipped models) the light and laser are present and working.

A press that passes is worth pursuing; one that fails several is a repair project.

Parts and upkeep

Because these are current products, JET parts and manuals are easy to get, which is a real advantage over discontinued machines. Routine upkeep is simple: keep the belt tensioned and replace it when it glazes, keep the column and quill clean and lightly lubricated, and set the depth stop for repeatable holes. The MT2 spindle makes chuck work flexible: a 5/8-inch keyed chuck with an MT2 arbor mounts directly, an MT2-to-JT33 arbor adapts a JT33 chuck if you prefer one, a lost key is a universal ratcheting chuck key, and a drill press vise holds metal parts securely.

The honest flaws

Two honest points. First, capability: 3/4 HP is strong for a belt-driven floor press and handles large bits and steel within its 5/8-inch chuck capacity, but it is not a geared-head machine, so very large hole saws in thick steel can still tax it. Match the bit to the motor. Second, size and setup: these are heavy floor machines that need dedicated space, a solid floor, and a two-person assembly, so the footprint is wasted on small work. Neither is a defect, just the reality of the class.

Who should buy it, and who should skip it

Buy a JET 3/4 HP floor press if you drill large bits, work metal, or need floor-column reach for tall parts, and you want current support and a long warranty. New or a sound used example, it is a dependable shop anchor.

Skip it if your work is small bench parts, where a benchtop press is more sensible and compact, or if you lack the floor space. And skip a used machine that fails the spindle or motor checks. Do not buy a heavy floor press to do a bench press’s job.

Conclusion: identify the model, then inspect

A JET 3/4 HP drill press is a capable floor machine, and buying or fixing one well comes down to identifying the model and checking condition.

• Represented by the JDP-17MF and the newer JDP-17: 3/4 HP, 16 speeds, MT2 spindle, 5/8-inch chuck.
• Identify the exact model first; tables, travel, and features differ between them.
• Used: check the spindle, motor, belt drive, table, and completeness before buying.
• Current products with easy JET support; capable in metal but not a geared-head machine.

FAQ

Which JET models are 3/4 HP? Floor presses like the JDP-17MF and the newer JDP-17, both with a 3/4 HP motor and 16 speeds.

How do the JDP-17MF and JDP-17 differ? The JDP-17 adds a longer 5-inch spindle travel, a larger 14-by-19-inch table, a poly-V belt with one-handed tensioning, and built-in LED light and laser.

What spindle taper do they use? An MT2 taper with a 5/8-inch keyed chuck, accepting heavy-duty chucks and MT2-shank tooling directly.

Can a 3/4 HP JET drill steel? Yes, within its 5/8-inch chuck capacity, using slow speeds. Very large hole saws in thick steel can still tax a belt-driven press.

What should I check on a used one? Spindle and quill smoothness, motor start and noise, belt and pulley condition, a flat table with working height adjustment, and completeness.

Are parts easy to get? Yes. These are current JET products, so parts, manuals, and support are readily available, unlike discontinued machines.

Is it too big for a home shop? It is a heavy floor machine needing dedicated space. For small bench work, a benchtop press is the more practical choice.

References

• JET 16-1/2” Drill Press JDP-17MF specifications, JET Tools: https://jettools.com/16-1-2-drill-press
• JET 17” Drill Press JDP-17 specifications, JET Tools: https://jettools.com/17-drill-press
• JET JDP-17 17” Floor Drill Press, Woodcraft: https://www.woodcraft.com/products/jet-17-floor-drill-press-3-4-hp-1-ph-115v-jdp-17