LE-G748 3" Composite Air Cut-Off Tool – Clean Accurate Cuts
LE-G748 3" Composite Air Cut-Off Tool – Clean Accurate Cuts
Product Summary
The Le Lematec LE-G748 is a 3" composite air cut-off tool. Lightweight composite body is 30-40% lighter than all-metal models. Uses 3" x 1/16" cut-off wheels with 3/8" arbor (wheels not included). Air inlet: 1/4" NPT at 90 PSI. Requires 4-5 CFM. Includes safety guard. Used for cutting exhaust pipe, bolts, sheet metal, and thin-wall tubing. One-hand pistol grip operation. Manufactured by Le Lematec. Price: $78.03. Ships factory direct.
Best for: Professional mechanics, industrial workers, and serious DIY enthusiasts.
LE-G748 Composite 3" Air Cut-Off Tool
The LE LEMATEC LE-G748 Composite 3" Air Cut-Off Tool is built for professionals and DIY enthusiasts who demand power, comfort, and safety. With a high-speed 20,000 RPM motor, ergonomic composite grip, and versatile 360° features, this compact tool delivers precise and efficient cutting for metal, plastics, and more.
Specifications
- Free Speed: 20,000 RPM
- Average Air Consumption (25%): 5.5 SCFM
- Power: 0.5 hp
- Sound dBA: 89.99 Pressure / 100.99 Power
- Vibration: 4.42 m/s²
- Wheel: 3" (75 mm)
- Angle: Straight
- Exhaust: Rear, 360° adjustable
- Length: 200 mm / 7.9 in
- Weight: 0.85 kg / 1.87 lbs
- Air Pressure: 90 PSI / 6.3 kg/cm²
- Air Inlet: 1/4"
Key Features
- 360° rotary spark guard for safer use in any position
- Safety trigger prevents accidental startups
- Insulated, ergonomic grip for user comfort
- Four-position rear speed regulator for precision control
- Adjustable exhaust directs air away from the operator
Perfect For
Ideal for mechanics, technicians, carpenters, and DIY users, the LE-G748 excels in cutting tasks like sheet metal trimming, pipe cutting, and bodywork repairs. Lightweight yet powerful, it’s a must-have in any workshop.
Why Professionals Choose This Tool
- Composite Body: Lightweight composite housing is 30-40% lighter than all-metal cut-off tools — dramatically reduces operator fatigue
- Clean Accurate Cuts: 3" wheel diameter provides excellent line-of-sight to the cutting line for precision cuts in tight spaces
- Exhaust System Work: The go-to tool for cutting exhaust pipe, clamps, rusted bolts, and muffler straps in automotive shops
- Bolt & Fastener Removal: Cuts through seized, rusted, and stripped bolts faster than drilling or torching
- One-Hand Operation: Compact pistol grip design allows comfortable single-handed cutting with the other hand stabilizing the workpiece
What's in the Box
- LE-G748 3" composite air cut-off tool
- Arbor wrench
- Safety guard
- Air inlet fitting (1/4" NPT)
- User manual
- Note: Cutting disc NOT included — use standard 3" x 1/16" cut-off wheels
Compatible With
| Cut-Off Wheels | 3" (76mm) x 1/16" reinforced cut-off wheels with 3/8" arbor hole — aluminum oxide, zirconia |
| Air Compressors | 4-5 CFM at 90 PSI |
| Materials | Sheet metal, exhaust pipe, bolts, fasteners, thin-wall tubing, small bar stock |
Ideal Applications: exhaust system cutting, bolt removal, sheet metal trimming, pipe cutting, fastener removal, bodywork, fabrication, HVAC ductwork
Frequently Asked Questions
What air compressor do I need for the LE-G748 3" Composite Air Cut-Off Tool?
This tool requires approximately 4-6 CFM at 90 PSI. A compressor with at least a 20-gallon tank provides sufficient air volume for intermittent use. For continuous operation, a 30+ gallon tank is recommended.
Is the LE-G748 3" Composite Air Cut-Off Tool compatible with my existing air setup?
Yes. Like all Le Lematec tools, it uses a standard 1/4" NPT air inlet fitting that's compatible with most compressors, hoses, and quick-connect couplers from any manufacturer.
Why is the cutting disc not included?
Cut-off wheels are consumable items — professionals prefer to choose their own brand, material type, and thickness. Standard 3" x 1/16" wheels with a 3/8" arbor hole are available at every auto parts store and industrial supplier. Aluminum oxide wheels are best for general steel cutting; zirconia wheels last longer on stainless steel.
Is this tool safe for cutting near fuel lines?
Yes. Unlike electric cut-off tools and reciprocating saws, the air-powered LE-G748 produces zero electrical sparks from the motor. However, the cutting disc itself will produce friction sparks on metal. Always have a fire extinguisher nearby and never cut into fuel-containing components. The zero-electrical-spark motor makes it safer than electric alternatives for automotive undercar work.
How long do 3" cut-off wheels last?
A standard 3" aluminum oxide wheel cuts through approximately 20-30 automotive exhaust clamps or 10-15 linear inches of exhaust pipe before needing replacement. Zirconia wheels last about 50% longer. Wheel life depends on material hardness, feed pressure, and whether you allow the tool to reach full speed before cutting.
What disc size does this cut-off tool use?
This tool uses standard 3-inch (76mm) cut-off discs with a 3/8-inch arbor. These discs are widely available at hardware stores and online. Keep spare discs on hand for extended cutting sessions.
What CFM does this air cut-off tool require?
This tool requires approximately 4-6 CFM at 90 PSI for optimal performance. A compressor with at least a 20-gallon tank is recommended for continuous cutting work to maintain consistent air pressure.
Can I use this for cutting sheet metal and exhaust pipes?
Yes, this air cut-off tool excels at cutting sheet metal, exhaust pipes, bolts, brackets, and thin-wall tubing. The 3-inch disc provides clean, precise cuts with minimal sparks compared to angle grinders.