Ingersoll Rand Extended Die Grinder, 1/4 in NPT Female Air Inlet, 1/4 in Collet, Heavy Duty, 15,000 RPM, 1.33 hp - 1761761678600_986 Die Grinder, Duty Heavy Duty, Horsepower 1.3 hp, Collet Size 1/4 in, Grinder Orientation Extended, Air Inlet Connection Size 1/4 in, Air Inlet Gender Female, Max. Speed 15,000 RPM, Air Inlet Type NPT, Air Inlet 1/4 in NPT Female, Tool Style Straight Extended, Kit Contents (1) Bare Tool, Grip Style Barrel Grip, Switch Location Top, Power Source Air Powered Features Overall Length15 1/2 in Air Inlet1/4 in NPT Female Horsepower1.3 hp Free Speed15,000 RPM Max. Speed15,000 RPM What Our Experts Think The Ingersoll Rand Extended Die Grinder delivers heavy-duty power and precision for industrial grinding, polishing, and deburring. Powered by 1.33 HP and capable of 15,000 RPM, it handles tough materials with ease. Features a 1/4" collet and extended straight design for improved reach and control in hard-to-access areas. Built with Ingersoll Rand’s durable air motor and ergonomic barrel grip for long-lasting comfort and reliability. Q&A Q: What makes this die grinder suitable for heavy-duty use?A: Its 1.33 HP motor, high 15,000 RPM speed, and robust construction allow it to tackle demanding metal fabrication and maintenance tasks efficiently. Q: What size collet and air inlet does it have?A: It includes a 1/4" collet and 1/4" NPT female air inlet, compatible with standard air systems. Q: Is this tool comfortable for extended use?A: Yes, the barrel grip and top-mounted switch offer secure handling and precise control during long work sessions. Maintenance Tips Lubricate the air motor daily with a few drops of air tool oil to prevent wear. Use a clean, dry air supply to avoid internal corrosion or performance loss. Check and tighten collet and accessories before each use. Inspect hoses and fittings regularly for leaks or damage. Store the grinder in a dry, dust-free environment when not in use to extend tool life.