Product Description Die Grinder, Duty Heavy Duty, Horsepower 0.4 hp, Collet Size 1/8 in; 3mm, Grinder Orientation Straight, Air Inlet Connection Size 1/4 in, Air Inlet Gender Female, Max. Speed 30,000 RPM, Air Inlet Type NPT, Air Inlet 1/4 in NPT Female, Tool Style Straight, Kit Contents (1) Bare Tool, Includes 1/8 in Collet Insert Mfr. No. 01495, 3mm Collet Insert Mfr. No. 01496, Material Application Carbon Fiber, Composites, Fiberglass, Metal, Safety Stop Mechanisms Safety-Lock Throttle Lever From the Manufacturer The Dynabrade Difference: Dedicated to exceeding the expectations of customers, through the innovative design of the highest quality abrasive power tools. MADE IN USA proudly displayed on every pneumatic tool package. Top research and development team dedicated to innovation and improvement. Comprehensive in-house staff of industrial engineers. Unmatched customer service department offering personal, professional service. Global sales team of abrasive power tool EXPERTS, dedicated to providing solutions. Complete service and repair program handled by trained pneumatic tool technicians. Unmatched marketing support includes highest-quality product catalog and sales literature, plus interactive company website. Expansive nationwide tradeshow schedule puts our product in customers' hands. We build LASTING RELATIONSHIPS with our business partners.