JET DG149HD 0.9 HP Super Heavy-Duty Pneumatic 1/4" Air Die Grinder | 18,000 RPM High-Performance Bar Stock Industrial Grinder (Model: 402116 / TDW385) | Brand New

Stop settling for air tools that bog down under pressure. Unleash the elite industrial power of JET's flagship 0.9 HP Super Heavy-Duty Die Grinder.

When it comes to heavy-duty industrial deburring, weld smoothing, porting, and material removal, standard shop air tools fail or seize up under continuous friction. The brand new JET DG149HD Pneumatic Die Grinder (Product No. 402116) stands out as JET's absolute best high-performance pneumatic tool. Driven by a massive, class-leading 0.9 Horsepower motor, this air tool maintains an ultra-consistent 18,000 RPM free speed, allowing you to aggressively drive carbide burrs and mounted abrasive stones through structural steel, cast iron, and heavy welds without loss of power.

Built like a tank for extreme operating environments, the housing of the DG149HD is precision-machined entirely from solid steel bar stock rather than cheap cast aluminum. Internally, the high-torque motor features a rugged two-ball bearing configuration, a finely honed alloy steel cylinder, and dual steel end plates to guarantee maximum performance and tool longevity. Equipped with a world-renowned, heavy-duty Erickson® 1/4" collet for ultimate grip and minimum runout, this professional tool delivers flawless accuracy while keeping you safe with a push-button, self-locking safety lever throttle.

Key Features & Benefits

• Flagship 0.9 HP Air Motor: Delivers a ferocious 18,000 RPM of relentless, high-torque power engineered specifically to handle continuous industrial production.

• Solid Bar Stock Steel Housing: Precision CNC-machined from thick, solid metal bar stock for unmatched impact resistance and structural durability on the shop floor.

• Premium Erickson® 1/4" Collet: Features an industry-best Erickson collet system, ensuring severe bit retention, maximum accessory service life, and virtually zero vibration.

• Advanced Internal Motor Architecture: Utilizes two ball-bearing anchor points, an alloy steel cylinder sleeve, and rugged steel end plates to stand up to decades of operation.

• Rear Exhaust Air Direction: Intelligently vents cold exhaust air out the back of the tool, directing air streams, stray motor oil, and metallic dust entirely away from your work piece.

• Self-Locking Lever Throttle: Ergonomic thumb throttle features a push-button safety lock to eliminate accidental or unintended tool startups.

• Internal Debris Screen: Built-in intake screen catches line scaling, rust flakes, and compressor debris before it ever reaches the precision motor components.

Technical Specifications

Ideal Applications

• High-volume manufacturing, structural fabrication, and foundry work.

• Precision automotive engine cylinder head porting and polishing.

• Heavy equipment maintenance, rust scaling, and weld bead removal.