The ATA Tools RA20LR is a small industrial pneumatic right-angle (90°) sander / die grinder, designed for precision grinding and finishing in tight spaces.

🔧 ATA RA20LR – Overview

This is a professional air-powered angle tool commonly used in metal fabrication, automotive, aerospace, and industrial maintenance.

Key specifications

• Type: Right-angle (90°) pneumatic sander / die grinder

• Model: RA20LR (also listed as RAM20LR in some catalogues)

• Power: ~0.30 kW (0.40 hp)

• Speed: ~20,000 rpm

• Collet size: 6 mm standard (3 mm optional)

• Weight: ~0.5–0.6 kg

• Air supply: High-demand tool (around 20 CFM / 0.57 m³/min)

• Exhaust: Rear

• Throttle: Lever control

💡 What it’s used for

This tool is designed for:

• Weld blending and dressing

• Deburring metal edges

• Cleaning castings

• Working in restricted/awkward spaces where straight grinders won’t fit

• Using Roloc / mini grinding discs or mounted points

⚙️ Performance notes

• Very fast (20,000 rpm) → efficient material removal but needs control

• High air consumption → requires a strong compressor (not suitable for small DIY setups)

• Compact head design makes it ideal for tight access industrial work