JET JT9-690069 JTM-4VS Mill: DRO, Powerfeed & Draw Bar

Most knee mills are sold as base machines. You buy the mill, then you have to figure out a DRO that fits, a powerfeed that mounts up, and a draw bar setup that works with what you need on the jobsite. 

That process can take up a lot of your time, cost money on top of the mill price, and there's no guarantee the pieces you pick will work as well together or fit cleanly on the machine.

The JET JTM-4VS Mill (Model JT9-690069) doesn't work that way. This bundle ships with the Newall DP700 DRO, an X-axis powerfeed, and a power draw bar already matched to the machine. You're not buying a base mill and sourcing accessories separately.

Here's the full breakdown of what comes with it, how it's built, and who it's the right machine for.

• (1) JET JTM-4VS knee mill (Model JT9-690069)
• (1) Newall DP700 2-axis digital readout (DRO)
• (1) X-axis powerfeed
• (1) Power draw bar
• (1) 9-speed, variable-speed head with R8 spindle taper
• (1) Precision-ground work table: 10" x 50"
• (1) Quill with 5" travel
• (1) Two-axis table with X travel of 30" and Y travel of 15.5"
• Coolant system included
• One-shot lubrication system
• 3-year warranty (JET)

The JTM-4VS is a vertical knee mill built for machine shops, toolrooms, job shops, and trade professionals who need a serious manual milling machine. It runs a variable-speed spindle from 60 to 4,200 RPM with nine distinct speeds and handles everything from heavy face milling and slotting to fine finish work and precision drilling.

Its "4VS" designation stands for the 4-horsepower variable-speed head. That head runs on a 220V/3-phase or 220V/single-phase power supply, depending on configuration, and it gives the operator a wide speed range across a single continuous dial rather than requiring belt changes for every speed adjustment. The spindle uses an R8 taper, the standard for Bridgeport-style knee mills, so your existing R8 tooling works without any adapter changes.

If you're looking at the table, it's a 10" x 50" precision-ground cast iron surface with three T-slots. X travel is 30 inches, Y travel is 15.5 inches, and the knee gives you 16 inches of vertical travel. The quill has 5 inches of travel, a fine-feed hand wheel, and a graduated depth stop. In fact, the whole machine sits on a rigid, one-piece cast-iron column that keeps the head tramming stable even during heavy cuts.

What makes this bundle different from buying a JTM-4VS base machine is the three accessories that come with it: the Newall DP700 DRO, the X-axis powerfeed, and the power draw bar.

If you've ever run a knee mill without a DRO, you know what it costs you in time. You're cranking the handles, watching the graduated dials, and doing mental math to chase a dimension. A dial can slip. A measurement can drift. You re-cut a part. The Newall DP700 takes that problem out of the equation.

The DP700 is a 2-axis linear scale DRO that reads X and Y table position in real time. The display gives you your current position in thousandths, and you can set a datum anywhere on the part with a single button press. The DP700 includes standard milling functions like bolt hole circles, linear patterns, and tool diameter offset so you're not doing those calculations on a notepad at the machine. The display is clear and easy to read, and the controls are laid out so you can operate it without taking your eyes off the spindle for more than a second.

Newall has been making DRO systems specifically for machine tools for decades. The DP700 is one of their core production models, which means it's a proven unit with a solid track record in production shops. It's not a generic DRO that got spec'd into the bundle because it was the cheapest option. It's a real machinist's tool.

With the DP700 already mounted and calibrated to the JTM-4VS, you don't have to source a DRO, buy separate scales, figure out the mounting hardware, or dial it in yourself. It's ready when the machine is ready.

Cranking a 30-inch table by hand through a long face mill pass isn't just tiring — it's inconsistent. Your feed rate changes when you get tired. A variable feed rate shows up in the surface finish. The X-axis powerfeed fixes that by driving the table at a set rate you control.

The powerfeed on the JTM-4VS bundle drives the X axis at adjustable feed rates so you can match your feed to the cutter, the material, and the depth of cut. You engage it, set your rate, and let it run the table while you keep your attention on the process. On long parts where a manual pass would take real effort, the powerfeed keeps the cut clean from start to finish.

It also protects you from the kind of mistakes that happen when you're manually cranking through a cut and lose focus for a second. A consistent, motorized feed keeps the cut moving at the right speed even if your hands are busy elsewhere on the machine.

The powerfeed is already mounted to the JTM-4VS in this bundle. There's no separate installation, no bracket sourcing, and no compatibility guesswork. It's part of the machine when it arrives.

If you've run an R8 knee mill with a manual draw bar, you know the drill. Wrench on top of the head, mallet tap to break the taper, repeat every time you change a tool. On a day where you're changing tools a dozen times, that adds up. It's slow, it's hard on the spindle over time, and it's just one more thing to deal with.

The power draw bar changes that. Instead of a wrench and mallet, you press a button or lever to release and tighten the draw bar. The R8 collet or tool holder locks and releases under powered actuation instead of by hand. Tool changes go faster, the spindle takes less impact over time, and you're not hunting for a mallet every time you need to swap a cutter.

In a production or toolroom environment where tool changes happen constantly, the power draw bar pays back in time and convenience quickly. It's the kind of upgrade that once you've used it, going back to manual feels like a step backward.

Like the DRO and powerfeed, the power draw bar in this bundle is already matched to the JTM-4VS's R8 spindle and mounted on the machine. You don't have to figure out compatibility or source it separately.

JET has been building machine tools for trade and industrial use since 1958. The JTM-4VS is built to Bridgeport-style dimensions, which means it fits in shops designed around that standard and takes all the same tooling and accessories. The ways, table, and knee are all precision-ground cast iron, and the column is a rigid one-piece casting.

The variable-speed head uses a belt-driven spindle with a continuously variable speed control, not a step-pulley setup that requires stopping the machine and manually moving a belt to change speed. You turn the dial, the speed changes. That matters on production work where you're running different materials or different cutter sizes and you don't want to stop and reconfigure the head every time the job calls for a different RPM.

The one-shot lubrication system oils the ways and knee screw with a single pump stroke. You pump it at the start of the shift and the machine stays lubricated throughout the day. The coolant system keeps the cutter and workpiece temperature controlled on materials where heat buildup is a problem.

The JTM-4VS bundle is a production-class knee mill package built for machinists, toolroom operators, job shops, and trade professionals who need a complete, capable milling setup without sourcing and fitting the accessories themselves.

• Machine shops and toolrooms that run a Bridgeport-style knee mill and want a complete replacement or additional unit with DRO, powerfeed, and power draw bar already included
• Job shops doing custom fabrication, prototype work, or production runs where accurate positioning, consistent feed rates, and fast tool changes all matter
• Trade professionals in fields like maintenance machining, HVAC fabrication, or industrial service who need a reliable knee mill with modern accessories and don't want to spend time sourcing and installing them separately
• Shops already running R8 tooling who want a machine that takes the same toolholders, collets, and cutters without any taper adapter changes
• Operations that want a serious machine tool backed by a 3-year warranty and a domestic service network rather than a budget import with no support behind it

The JTM-4VS bundle is one of the most complete knee mill packages on the market at its price point. The machine itself is a well-built, Bridgeport-style knee mill with a true variable-speed head, a precision-ground 10" x 50" table, and a 30-inch X travel. The R8 spindle takes standard tooling. The ways and knee are ground cast iron. The one-shot lube system and coolant system are both included.

But what makes this bundle worth a hard look isn't just the mill. It's the fact that the Newall DP700 DRO, the X-axis powerfeed, and the power draw bar are all included and already matched to the machine.

For a machine shop, toolroom, or trade operation that wants a complete knee mill setup they can put to work on day one, the JTM-4VS bundle is the package that delivers that without the hassle of piecing it together yourself. It's backed by JET's 3-year warranty and a parts-and-service network that's supported trade professionals for over 60 years.