Description
Machine precision commercial mower brackets, drill bolt hole patterns, and bore bearing pockets inside small service stalls. The JET JMD-15 Mill with R-8 taper delivers benchtop milling versatility on single-phase 115V or 230V power. This compact round column mill drill features twelve belt-driven spindle speeds. It requires solid workbench mounting to eliminate machine vibration under heavy cuts.
Heavy cast-iron forms the column, base, and 7.5×23-inch precision ground worktable, damping out cutting vibration during end-milling passes. A 1 HP dual-voltage electric motor drives the step-pulley head, providing twelve distinct spindle speeds from 110 to 2580 RPM. The 3-inch diameter round steel column supports the headstock with 360-degree rotation. The R8 spindle taper accepts standard industrial collets, end mill holders, and drill chucks.
Key Features of JET JT9-350017
Turf repair technicians use this compact benchtop mill drill to slot mower deck brackets and bore small pulley hubs. The dual-voltage motor runs on standard 115V shop circuits.
- 1 HP dual-voltage 115V/230V motor provides dependable cutting power in small shop bays
- Twelve step-pulley spindle speeds range from 110 to 2580 RPM for drilling and milling
- 7.5×23 inch precision ground cast-iron worktable features two 5/8-inch T-slots for vise clamping
- R8 spindle taper accepts standard industrial milling collets, chucks, and boring heads
- Heavy 3-inch diameter ground steel column provides rigid headstock support during drilling
- Spindle quill fine feed handwheel provides micro-depth adjustments for shallow slotting passes
- Articulating headstock rotates 360 degrees around the column to accommodate tall workpieces
Benchtop Mill Drill Load Telemetry
Spindle load tests confirm stable drilling of 1-inch holes in 1018 mild steel at 280 RPM without drive belt slip. Spindle radial runout measures under 0.0005 inches at the spindle taper nose. Motor current draw measures 11.2 amps on 115V power under full cut depth. Worktable flatness holds tolerance within 0.0008 inches across the entire 23-inch table span. Acoustic sound levels measure 68 dBA.
Benchtop Milling Safety Setup Boundaries
Bolt the cast-iron base tabs securely to a heavy reinforced steel workbench before starting milling operations. Lock table axis clamps on idle axes before taking heavy cuts to eliminate table deflection. Never loosen column headstock clamp bolts while the spindle motor rotates.
- Spindle quill rack and pinion teeth demand ISO 68 way oil lubrication weekly
- Drive belts require visual checks for glazing and tension adjustments every season
- Cast-iron table top requires light machine oil wipe-downs to stop surface rust
JET JMD-15 Mill Drill Warranty
JET backs this benchtop mill drill with a 2-Year commercial warranty covering mechanical components and electrical motors. The shipment includes the JMD-15 mill drill, 1/2-inch drill chuck, chuck arbor, safety guard, and manual.