Magnum 3/8 Inch Drive Pneumatic Air Ratchet (AR500)

Busting loose stubborn nuts and bolts in tight engine bays requires a tool that fits where standard wrenches can't. The Magnum AR500 3/8-inch air ratchet features a compact head and a lightweight aluminum body to access narrow spaces with ease. Delivering 50 ft-lbs of maximum torque, it relies on fully hardened planetary gears to handle the friction of heavy daily shop use.

Features

• Fully hardened planetary gears - reduce internal friction and stand up to the torque demands of professional shops.
• Composite grip handle - insulates your hand from cold air and reduces vibration during operation.
• Ball-bearing mounted air motor - delivers consistent power and maintains smooth rotation under load.
• Rear forward/reverse lever - allows for quick directional changes directly behind the ratchet head.
• Side exhaust - vents air safely away from the immediate work area.

Common Shop Applications

• Removing timing covers and water pumps
• Accessing bell housing bolts
• Disassembling interior dashboard components

Specifications

• Drive size: 3/8 Inch (9.5 mm)
• Maximum torque: 50 ft-lbs
• Free speed: 160 RPM
• Average air consumption: 4.02 CFM (113.8 L/min)
• Air inlet: 1/4 Inch (6.35 mm) NPT
• Minimum hose size: 3/8 Inch (9.5 mm)
• Length: 11.02 Inch (279.9 mm)
• Weight: 2.65 lbs (1.2 kg)
• Supplier Part Number: 17411
• KMS Product Code: MAG-AR500

Recommended Shop Add-Ons

• Most automotive technicians also grab: 3/8 Inch Drive Impact Socket Set - withstands the sudden torque bursts without cracking.
• You'll also need: Air Tool Oil - maintains the planetary gears and prevents internal corrosion.

Frequently Asked Questions

Q: Can I use this to break loose extremely over-torqued bolts?A: Air ratchets are designed for speed in tight spaces, not high-torque breakaway. Break the bolt loose manually first, then use the air ratchet to spin it out quickly.

Q: Does the exhaust blow straight into my face in tight areas?A: No, it features a side exhaust that directs the air safely away from the immediate work area.