JET JAT-450 4" Pneumatic Angle Grinder - JT9-505450

JET JAT-450 4" Pneumatic Angle Grinder - JT9-505450

JET Air Grinders and Cutter Tools are designed to weigh less than competitive models. These grinder and cutter machines bring more than enough power to tackle any air-powered applications. The Jet JAT-450 Angle Grinder is built to make your job easier. With adjustable wheel cover, spindle lock for wheel changes, and outstanding power for it's 0.9hp motor, this tool will help you get your job done fast and efficiently.

Top applications include body work, grinding, and general maintenance.

Features

• Lightweight composite handle
• Precision spiral bevel gears transfer torque and speed to spindle for added durability
• Rugged, ball-bearing design for durability
• Safety throttle lock prevents accidental engagement
• Tapered angle gear housing allows greater visibility of targeted work area
• Toolless wheel guard swivels 360° with 9 preset positions
• Two-position auxiliary handle for versatility
• Variable-speed throttle ramps up to maximum RPM

Specifications

What our Experts Think

• Compact & Powerful: Delivers high-speed grinding with a 4" disc, perfect for precision metal and surface work.

• Ergonomic Design: Lightweight body and comfortable grip reduce user fatigue during extended use.

• Durable Build: Metal housing and quality components ensure long-lasting performance in tough shop environments.

• Smooth Operation: Pneumatic motor offers consistent power and easy speed control for fine finishing.

• Versatile Use: Ideal for grinding, polishing, and cutting tasks across metalworking and fabrication projects.

Q&A

Q: What type of grinder is the JET JAT-450?
A: It’s a 4-inch pneumatic (air-powered) angle grinder designed for versatile grinding tasks.

Q: What is the power source for this grinder?
A: Powered by compressed air, offering lightweight and efficient operation.

Q: What applications is this angle grinder suitable for?
A: Ideal for metal grinding, deburring, and surface finishing in industrial and workshop settings.

Q: Does it feature any ergonomic design?
A: Yes, it has a compact, lightweight design with a comfortable grip for reduced user fatigue.

Q: What is the maximum speed of the grinder?
A: Operates at high RPM for fast, precise grinding.

Q: Is this tool suitable for professional use?
A: Yes, built for durability and reliable performance in demanding environments.

Maintenance Tips

• Lubricate Air Motor Regularly – Use pneumatic tool oil daily or before use to keep the motor running smoothly and prevent corrosion.

• Inspect Grinding Discs – Check for cracks, chips, or excessive wear and replace discs immediately to ensure safety and performance.

• Check Air Hoses and Fittings – Inspect hoses for leaks, cracks, or damage and replace if necessary to maintain consistent air supply.

• Clean the Tool Exterior – Wipe down the grinder to remove dust and debris that can interfere with operation.

• Monitor Air Pressure – Ensure air pressure stays within manufacturer-recommended levels (usually 90 PSI) to avoid motor damage.

• Tighten All Fasteners – Periodically check and secure screws, bolts, and nuts to minimize vibrations during use.

• Store Properly – Keep the grinder in a dry, clean area to prevent rust and damage to pneumatic components.

• Avoid Overheating – Use the grinder as intended and avoid excessive pressure to prolong tool life.

• Use Correct Accessories – Always use discs and attachments rated for the grinder’s size and speed.

• Follow Manufacturer’s Guidelines – Adhere to JET’s recommended maintenance schedule and safety instructions for best results.