Ingersoll Rand 308B Air Straight Die Grinder – Lightweight, 0.33 HP, 25,000 RPM

Overview

When speed and control matter in metal finishing, the Ingersoll Rand 308B Air Straight Die Grinder is built to perform. Powered by a robust vane motor, it delivers 0.33 HP and up to 25,000 RPM free speed, providing decisive torque for material removal while keeping you in command in tight spaces. The tool weighs about 1 lb, and its lightweight, composite housing is designed for comfortable handling during extended sessions.

Durability is a core focus. Ball-bearing construction helps with balance and vibration reduction, while a built-in lubricating wick supports gear life. The safety-lock throttle prevents accidental starts, adding a layer of protection for you and your work area. For cleaner work environments, the grinder is ready for piped away exhaust systems and features a rear exhaust that directs air away from the operator, reducing heat and noise exposure while you work.

Key features

• Lightweight and ergonomic design to reduce fatigue and improve control
• Ball-bearing construction enhances balance and durability; lubricating wick extends gear life
• Integral safety-lock throttle minimizes accidental startup
• Rear exhaust directs air away from the operator; piped-away exhaust compatibility lowers debris in the workspace
• Also available in the 308BK kit, which includes four burrs and a carry case

Applications and versatility

This grinder excels in a range of metalworking tasks, including porting, weld breaking, de-burring, polishing, and grinding. Its compact form helps you reach tight spots, while the 0.33 HP output delivers reliable cutting power without overwhelming the operator. Whether you’re finishing a delicate edge or removing material from a weld seam, the 308B offers a controllable, steady performance that adapts to your workflow.

What’s in the kit

The 308BK kit option includes four burrs and a blow-molded carrying case, expanding your capabilities out of the box and supporting quick material transitions between tasks. This makes it a flexible choice for shops that tackle multiple finishes and surface preparations.

Specifications at a glance

• Power: 0.33 HP vane motor
• Free speed: 25,000 RPM
• Weight: approx 1 lb
• Grip: ergonomic composite housing
• Safety: integral safety-lock throttle
• Exhaust: rear exhaust with piped-away compatibility
• Durability: ball-bearing construction and lubricating wick