Dynabrade 43515 Extension Die Grinder 6" (152mm) 0.4 HP 25,000 RPM Gearless Rear Exhaust

The Dynabrade 43515 is a pneumatic 0.4 hp (298W) gearless extension die grinder featuring a 6" (152 mm) extended shaft, purpose-built for reaching into deep, confined, and previously inaccessible work areas. With a slim shaft diameter of just 3/4" (19 mm), this tool fits into the narrowest of passages where standard die grinders simply cannot reach.

Designed for professional industrial use, the 43515 excels at work inside long pipes, castings, channels, and other restricted geometries. A governor-controlled motor maintains a consistent 25,000 RPM under load, ensuring reliable performance throughout demanding tasks.

Key Features:

• 0.4 hp (298W) gearless pneumatic motor — 25,000 RPM free speed
• 6" (152 mm) extension shaft — reaches deep into pipes, castings, and confined channels
• Slim 3/4" (19 mm) shaft diameter — fits the narrowest work areas
• Dual collet compatibility — accepts both 1/4" and 6 mm collets
• Accepts optional accessories — carbide burrs, abrasive stones, mounted wheels, and molded abrasives
• Governor-controlled motor — maintains speed under load for consistent results
• Rear exhaust with extended muffler for reduced noise and operator comfort
• Safety-lock throttle lever — prevents accidental startup
• Ergonomic housing with soft-touch grip for reduced operator fatigue
• 1/4" NPT air inlet — 90 PSI operating pressure, 20 SCFM air consumption
• Overall dimensions: 14" L x 5.5" W x 1.5" H
• Sound level: 73 dBA

The Dynabrade 43515 is ideal for rapid material removal, deburring, deflashing, surface preparation, cleaning, finishing, and polishing across a wide range of industrial applications. The extended muffler and rear exhaust design direct airflow away from the operator and the work surface, improving comfort and visibility.