Dynabrade 51301 Straight Air Die Grinder 0.5 Hp

Product Description

The DYNABRADE 51301 is a straight air die grinder designed for precision grinding, deburring, and surface finishing in industrial and trade environments. Powered by compressed air at 90 psig, it delivers 18,000 RPM and 0.5 horsepower through a lever-style throttle for controlled material removal. The front exhaust configuration directs airflow away from the workpiece and the operator, keeping the work area cleaner during operation. At 1.5 pounds, this grinder is well-suited for extended use in confined spaces and production line applications where control and low fatigue matter. The included 1/4-inch collet insert gets the tool ready to run out of the box.

The 51301 fits grinding, porting, and finishing tasks in automotive, aerospace, metal fabrication, and general manufacturing settings. The lever throttle gives the operator precise speed control, making it appropriate for both aggressive stock removal and fine detail work. Optional collet inserts expand the tool to accept 1/8-inch, 3/8-inch, 6 mm, and 8 mm shanks, broadening the range of compatible burrs, mounted points, and abrasive accessories without requiring a separate tool. It is a practical choice for toolmakers, maintenance mechanics, and production grinders who need a compact, reliable air-powered grinder.

Key Features

• 18,000 RPM no-load speed for efficient grinding and deburring
• 0.5 HP air motor operates at 90 psig supply pressure
• Lever throttle provides precise speed control during operation
• Front exhaust directs air away from the operator and workpiece
• Includes 1/4-inch collet insert; accepts optional 1/8-inch, 3/8-inch, 6 mm, and 8 mm collets
• Lightweight at 1.5 pounds, reducing fatigue during extended use

Compatibility

Includes 1/4-inch collet insert (50013). Compatible with optional collet inserts: 1/8-inch (50065), 3/8-inch (50014), 6 mm (50016), and 8 mm (50039).

Installation Notes

Installation and operation should be performed by qualified personnel familiar with pneumatic tools and applicable workplace safety standards. Before connecting to an air supply, verify the line pressure does not exceed 90 psig and that an inline filter-regulator-lubricator is in place to protect the air motor. Disconnect the air supply before changing collets or mounted accessories. Always confirm the accessory shank diameter matches the installed collet before operating the tool.