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A pneumatic straight air die grinder resting on a light-colored surface. The tool has a cylindrical body with a blue and silver upper section labeled “JET HEAVY DUTY” and a black lower section ending in a collet for attaching grinding bits. A metal lever on the side serves as the trigger, and an air hose connector is attached at the top. The tool’s industrial design and sturdy construction indicate it’s used for grinding, polishing, or cutting metal surfaces in workshop settings.
  • A pneumatic straight air die grinder resting on a light-colored surface. The tool has a cylindrical body with a blue and silver upper section labeled “JET HEAVY DUTY” and a black lower section ending in a collet for attaching grinding bits. A metal lever on the side serves as the trigger, and an air hose connector is attached at the top. The tool’s industrial design and sturdy construction indicate it’s used for grinding, polishing, or cutting metal surfaces in workshop settings.
  • A pneumatic straight air die grinder resting on a light-colored surface. The tool has a cylindrical body with a blue and silver upper section labeled “JET HEAVY DUTY” and a black lower section ending in a collet for attaching grinding bits. A metal lever on the side serves as the trigger, and an air hose connector is attached at the top. The tool’s industrial design and sturdy construction indicate it’s used for grinding, polishing, or cutting metal surfaces in workshop settings.
JET 1/4-Inch 0.6 HP Heavy-Duty Extended Shaft Pneumatic Die Grinder (MG-6HDE / 408331) | Used, Great Condition | Long-Reach Industrial Air Grinder

JET 1/4-Inch 0.6 HP Heavy-Duty Extended Shaft Pneumatic Die Grinder (MG-6HDE / 408331) | Used, Great Condition | Long-Reach Industrial Air Grinder

SKU: ABL086

Brand: JET

Condition: Used

$215.65 $431.29

Reach deep internal bores, weld seams, and tight casting cavities with smooth 0.6 HP pneumatic power. Upgrade your fabrication shop with this used JET 1/4" Extended Air Die Grinder.

When standard die grinders can't clear surrounding workpieces or reach deep internal ports, an extended-reach spindle is essential. The JET MG-6HDE (408331) 1/4" Heavy-Duty Extended Die Grinder features a extended reach housing that allows operators to grind, deburr, polish, and port in hard-to-reach areas while keeping hand controls safely clear of the workspace.

Powered by a industrial-grade 0.6 HP air motor, this tool delivers high rotational torque to maintain RPM under heavy grinding load.

This item is in excellent, fully functional used condition. The air motor runs smoothly without bearing whine or air leaks, the safety-lock throttle lever engages crisp mechanical control, and the 1/4-inch precision collet clamps tight with zero runout. Built with an aluminum housing and a rear exhaust design that directs air away from the workpiece, it exhibits normal cosmetic shop wear—including surface scuffs, light housing scratches, and faint shop patina—with zero cracks, air leaks, or structural defects.

Key Features & Benefits

  • Extended Reach Spindle Housing: Long nose design provides clearance for grinding inside deep pipes, manifolds, intake ports, and structural fabrications.

  • 0.6 HP Industrial Air Motor: High-torque motor provides continuous power to prevent stalling during heavy deburring and weld blend grinding.

  • Precision 1/4-Inch Collet: Machined steel collet firmly grips carbide burrs, mounted stones, and sanding drums with minimal vibration.

  • Safety Lockoff Throttle Lever: Prevents accidental tool startup to protect shop operators in busy work areas.

  • Rear Air Exhaust System: Directs exhaust air and residual oil mist away from the operator and the immediate working surface.

Technical Specifications

Attribute Specification
Brand JET® Equipment & Tools
Model / Part Number (MPN) MG-6HDE / 408331
Condition Used (Excellent functional state, light cosmetic shop wear)
Tool Type Extended Shaft Straight Pneumatic Die Grinder
Collet Size 1/4 Inch
Motor Horsepower (HP) 0.6 HP
Free Speed (RPM) 22,000 RPM
Air Inlet Size 1/4 Inch NPT
Exhaust Location Rear Exhaust
Housing Construction Cast Aluminum with Textured Safety Grip

Complete Package Contents

  • 1x JET 1/4" 0.6 HP Extended Heavy-Duty Air Die Grinder (MPN: MG-6HDE)

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