Description
Drill heavy trailer hitch plates, slot commercial mower brackets, and face implement housings on standard shop power. The JET JMD-18 Metal Working Mill/Drill delivers 2 HP cutting muscle with an R8 spindle taper. This heavy round column mill drill handles tough metalworking jobs. It requires a dedicated heavy steel stand or concrete-bolted bench to prevent vibration.
Solid cast-iron forms the base, column, and 9.5×31.75-inch ground worktable, absorbing vibration during aggressive face-milling passes. A 2 HP single-phase motor powers a 12-speed step-pulley head, providing spindle speeds from 150 to 3000 RPM. The heavy 4.5-inch diameter thick-wall column resists deflection during aggressive manual drilling downforce. The R8 spindle taper accepts standard industrial tooling collets, end mill holders, and chucks.
Key Features of JET JT9-350018
Equipment rebuilders and metal fabricators use this 2 HP mill drill to bore commercial spindle housings and mill replacement tractor keyways. The wide table supports large parts.
- 2 HP single-phase 115V/230V motor drives a 12-speed step-pulley head across 150 to 3000 RPM
- 9.5×31.75 inch precision ground cast-iron worktable supports heavy machinery weldments
- Large 4.5-inch diameter ground steel column resists deflection under heavy drilling downforce
- R8 spindle taper accepts standard industrial collets, end mill holders, and boring heads
- Fine-feed manual quill handwheel provides micro-depth adjustment for shallow slotting passes
- Integrated work light illuminates workpiece punch marks inside darker shop corners
- Worktable features three 5/8-inch T-slots for rigid clamping of milling vises and fixtures
Mill Drill Performance Dyno Telemetry
Spindle load tests verify continuous slotting of 1018 steel using a 1/2-inch end mill at 640 RPM with zero drive chatter. Spindle radial runout measures under 0.0004 inches at the spindle taper face. Downforce load tests confirm drilling of 1-1/4 inch holes in solid carbon steel. Motor current draw measures 9.0 amps on 230V power under full cut depth. Acoustic noise levels register 70 dBA.
Benchtop Mill Operation Safety Guardrails
Anchor the machine base securely to a heavy reinforced machine stand before taking heavy cuts. Lock the table axis clamps on idle axes before engaging cuts to eliminate table deflection. Never attempt to shift step-pulley drive belts while the electric motor spindle rotates.
- Quill feed rack and column guide tracks demand daily lubrication with ISO 68 way oil
- Step-pulley drive belts require tension inspection and alignment checks every six months
- Cast-iron table top requires light machine oil wipe-downs to stop surface rust
JET JMD-18 Mill Drill Warranty
JET backs this heavy mill drill with a 2-Year commercial warranty covering mechanical parts and electrical motors. The shipment includes the JMD-18 mill drill, 1/2-inch drill chuck, chuck arbor, safety guard, and manual.
