Le Lematec LE-G1045R Air Straight Die Grinder | 22,000 RPM, Dual Collet 1/4" & 1/8", On-Tool Spanner
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- $93.99
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- $93.99
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LE-G1045R Air Straight Die Grinder (On-Tool Spanner)
The LE LEMATEC LE-G1045R Air Straight Die Grinder is engineered for precision, power, and comfort. Designed for mechanics, carpenters, technicians, and DIY enthusiasts, this pneumatic grinder delivers smooth 22,000 RPM performance in metalworking, woodworking, and finishing applications.
Specifications
- Free Speed: 22,000 RPM
- Average Air Consumption (25%): 6 SCFM
- Power: 0.5 hp
- Sound dBA (pressure/power): 79 / 90
- Vibration: 1.61 m/s²
- Collet Size: 1/4" and 1/8" (dual collet system)
- Angle: Straight
- Exhaust: Rear
- Length: 190 mm / 7.5 in
- Air Pressure: 90 PSI / 6.3 kg/cm²
- Air Inlet: 1/4"
Key Features
- Perfect for carbide burrs and mounted points
- Dual collet system accepts 1/4" and 1/8" shank accessories
- Integrated on-tool spanner wrench for quick bit changes — no loose tools needed
- Ergonomic and safe handle design
- Compact and lightweight for reduced fatigue
- Low vibration (1.61 m/s²) for smoother operation
- Special muffler reduces noise to 79 dB
Built for Professionals & DIY
Whether you're tackling heavy-duty grinding in the workshop or precision finishing at home, the LE-G1045R provides the balance of power, control, and comfort that professionals demand and hobbyists appreciate.
Why Professionals Choose This Tool
- Precision Straight Body: Slim inline design reaches inside cavities, ports, and channels that angle grinders and rotary tools cannot access
- Dual Collet System: Accepts both 1/4" and 1/8" shank accessories — maximum versatility with one tool
- On-Tool Spanner: Integrated wrench eliminates searching for loose tools during collet and accessory changes
- 22,000 RPM for Fine Finishing: Optimal speed for porting, deburring, polishing, and detailed material removal
- Rear Exhaust: Keeps exhaust air away from the workpiece — critical for clean finishing and polishing work
What's in the Box
- LE-G1045R air straight die grinder
- Spanner wrench (integrated on tool)
- Collet set (1/4" and 1/8")
- Air inlet fitting (1/4" NPT)
- User manual
Compatible With
| Accessories | 1/4" and 1/8" shank mounted points, carbide burrs, grinding stones, sanding drums, wire brushes, polishing bobs |
| Air Compressors | 5-6 CFM at 90 PSI |
| Materials | Steel, cast iron, aluminum, wood, plastic, fiberglass, ceramic, stone |
Ideal Applications: die grinding, metal deburring, port polishing, mold finishing, weld cleanup, casting flash removal, tool and die work, jewelry making
Frequently Asked Questions
What air compressor do I need for the LE-G1045R Air Straight Die Grinder?
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-G1045R 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.
What accessories work with a straight die grinder?
Straight die grinders accept any 1/4" or 1/8" shank mounted accessory: carbide burrs for metal cutting, grinding stones for deburring, sanding drums for contour sanding, wire brushes for cleaning, felt bobs for polishing, and rubber polishing points. The LE-G1045R dual collet system accepts both standard sizes.
Is a straight die grinder the same as a rotary tool (Dremel)?
Die grinders deliver significantly more power and torque than hobby rotary tools. The LE-G1045R handles heavy deburring, porting, and material removal that would stall or overheat a rotary tool. Think of a die grinder as the industrial-strength version — same concept, 5-10x the power and durability.
Can I use this for porting and polishing engine heads?
Yes. Straight die grinders are the standard tool for cylinder head porting. The slim body reaches inside intake and exhaust ports. Use carbide burrs for material removal, then switch to grinding stones and polishing bobs for flow-smoothing. The LE-G1045R dual collet (1/4" and 1/8") accommodates all common porting accessories.

