JET JTM-2 Mill with 3-Axis ACU-RITE 203 DRO (Quill) with X-Axis Powerfeed is a professional-grade vertical knee mill engineered by JET for demanding machining operations. Built on the rock-solid foundation of certified Meehanite castings and equipped with a 3-axis ACU-RITE 203 digital readout and X-axis powerfeed, this step pulley R-8 mill delivers the precision, stability, and control that experienced machinists require for accurate material removal and repeatable results.

Key Features

• Certified Meehanite castings provide exceptional rigidity and vibration damping for superior surface finishes
• Heavy duty splined motor drive transfers power efficiently for consistent cutting performance
• Internal coolant tank built into base for use with coolant system (coolant pump not included)
• Large diameter quill is chromed for smooth, precise vertical travel and long-lasting durability
• One shot lubrication system simplifies maintenance and ensures all critical surfaces stay properly lubricated
• Precision bored and honed milling head guarantees accurate spindle alignment and minimal runout
• Precision hardened and ground ways deliver smooth, accurate table movement along all axes
• Spindle head is internally cooled to prevent seizing during extended machining operations
• Three stage power downfeed with automatic stop for controlled, repeatable depth drilling and boring
• Tolerance test sheet included, confirming the machine meets JET's rigorous quality standards out of the box
• 3-axis ACU-RITE 203 DRO with quill axis for precise positional readout
• X-axis powerfeed for consistent, hands-free longitudinal table travel
• 8 spindle speeds ranging from 80 to 2,720 RPM to accommodate a wide range of materials and tooling
• R-8 spindle taper - the industry-standard for Bridgeport-style mills - accepts a broad range of toolholders and collets
• 5-inch spindle travel and 3-3/8-inch chrome quill diameter for versatile vertical reach

Specifications

• MPN: JT9-690072
• Style (Type): Step Pulley R8
• Motor: 2 HP, 115/230V, 1Ph
• Number of Spindle Speeds: 8
• Range of Spindle Speeds (RPM): 80 - 2,720
• Spindle Taper: R-8
• Spindle Travel (In.): 5
• Quill Diameter (In.): 3-3/8
• Quill Down Feed Rates (IPR): .0015 - .003 - .006
• Number of Axis: 3 (Quill)
• Powerfeed: X-Axis
• Table Size (L x W) (In.): 9 x 42
• Table Longitudinal Travel (In.): 23-7/8
• Table Longitudinal Travel With Powerfeed (In.): 20-2/7
• Table Cross Travel (In.): 12-1/2
• T-Slot Centers (In.): 2-1/2
• Travel of Knee (In.): 14-1/2
• Distance Spindle to Column (Max.) (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Collet Capacity: 1/8 - 7/8
• Overall Dimensions (L x W x H) (In.): 57 x 64 x 82
• Prop 65: Cancer and Reproductive Harm
• Country of Origin: Taiwan

What's Included

• JET JTM-2 Vertical Knee Mill
• ACU-RITE 203 3-Axis DRO (Quill)
• X-Axis Powerfeed
• Tolerance test sheet

Frequently Asked Questions

What spindle taper does the JTM-2 use, and what collet sizes does it accept?

The JTM-2 uses an R-8 spindle taper, which is the standard for Bridgeport-style vertical mills. It accepts collets ranging from 1/8 inch to 7/8 inch, giving you broad compatibility with a wide variety of toolholders, end mills, and drill chucks.

Does this mill include a coolant pump?

The JTM-2 has an internal coolant tank built directly into the base, designed for use with a coolant system. However, the coolant pump is not included and would need to be purchased separately.

What are the three power downfeed rates available on the quill?

The three-stage power downfeed system offers feed rates of .0015, .003, and .006 inches per revolution (IPR), allowing you to select the appropriate rate for your material and operation. An automatic stop is included for repeatable depth control.

Is a tolerance test sheet provided with the machine?

Yes, a tolerance test sheet is included with the JTM-2. This document verifies that the machine has been inspected and confirmed to meet JET's precision manufacturing standards prior to shipment, giving you confidence in the mill's accuracy right out of the crate.