ZDG-3076L300 – 12-Inch Air Extension Die Grinder
A high-performance pneumatic grinder built for precision tasks in hard-to-reach areas, the ZDG-3076L300 Air Extension Die Grinder features a mid-length 12-inch extension and a low-speed setup. Constructed for reliability and ergonomics, it’s an excellent tool for professionals in automotive, fabrication, and industrial maintenance.
Key Specifications
| Feature | Specification |
|---|---|
| Motor Power | 1.0 HP |
| Free Speed | 3,500 RPM |
| Collet Holder | ¼″ (6 mm) and 3/8″ (8 mm) double-angle |
| Total Length | 18.7″ (477 mm) |
| Net Weight | 3.5 lbs (1.6 kg) |
| Air Inlet | ¼″ NPT |
| Minimum Hose Size | ⅜″ (10 mm) |
| Average Air Consumption | 4.2 CFM |
| Housing & Levers | Aluminum alloy, comfort grip, safety lever |
| Exhaust Type | Rear exhaust (clean operation) |
Advantages & Benefits
Accessible Design — With a 12-inch (305 mm) shaft, it’s ideal for reaching cavities in machinery, engine compartments, and molds where standard tools fall short.
Controlled, Low-Speed Operation — The 3,500 RPM motor provides enhanced torque and precision, making it perfect for flap sanding and delicate material removal.
Flexible Accessory Usage — Dual-angle collet system supports both 6 mm and 8 mm attachments for a broad range of grinding and finishing solutions.
User Comfort & Control — Features an ergonomic comfort grip and a safety lever designed for fatigue-free handling.
Clean Working — Rear exhaust design ensures airflow is directed away from the operator’s hand and workspace.
Ideal Applications
Automotive: Polishing internal components such as brake rotors and inner panels.
Fabrication & Mold Making: Finishing tight cavities, internal mold surfaces, and compact workpieces.
Industrial Maintenance: Accessible grinding in enclosed assemblies and machinery without disassembly.
Model Comparison at a Glance
| Model | RPM | Length | Weight | Best For |
|---|---|---|---|---|
| ZDG-3076L300 | 3,500 RPM | 18.7″ | 3.5 lbs | Low-speed precision in mid-depth tasks |
| ZDG-301L300 | 22,000 RPM | 17.5″ | 2.9 lbs | Rapid grinding in tighter spaces |
| ZDG-3076L500 | 3,500 RPM | 28.3″ | 4.5 lbs | Controlled work in deeper recesses |
Each model is designed for specific workflows, balancing speed, torque, and reach to meet different application demands.
Why Choose the ZDG-3076L300?
When precision matters in confined spaces, the ZDG-3076L300 delivers the perfect mix of ergonomic design, torque-focused speed, and extended reach. Its durable build and versatile accessory compatibility make it a great asset for professionals battling limited access environments.
Benefits
- Industrial extended shaft long die grinder design for high-speed grinding& polishing in hard-to-reach areas
- By using 1/4″( 6mm) or 3/8″(8mm) Double Angle Collets, the die grinder can be used in a wide range of grinding and polishing applications with various wheels
- 4000rpm models are excellent for grinding applications with a flap sanding wheel
- High productivity
- Highest durability in demanding applications
Features
- 12″ (305 mm), 21-3/8″ (543 mm), 31-1/2″ (800 mm) extended body by Aluminum alloy structure.
- Comfort grip over-housing
- Streamlined safety lever
- Rear exhaust
- 1/4″ (6mm) & 3/8″ (8mm) industrial grade Double Angle collet holder
- 1.0 hp motor
- 22,000 rpm free speed models and 3,500 rpm free speed models
 | |
| ZST-200E-29 6mm COLLET ZST-200E-29-1 1/4″ COLLET | ZST-200E-29-2 8mm COLLET ZST-200E-29-4 3/8″ COLLET |
Specification:
- 1HP Die Grinders
- Collet size: 1/4(6) inch(mm)
- Net Weight: 3.5(1.6) Ibs(kg)
- Length: 18.7(477) inch(mm)
- rpm: 3500
- Air Inlet: 1/4 inch
- Min.Hose Size: 3/8(10) inch(mm)
- Avg. Air Cons.: 4.2 cfm
* The length of the extended body can be customized to extend as required.
| Model | Collet size inch(mm) | Net Weight lbs(kgs) | Length inch(mm) | rpm | Air Inlet inch | MinchHose Size inch(mm) | Avg. Air Cons. cfm |
| ZDG-301L300 | 1/4(6) | 2.9(1.3) | 17.5(445) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-301L500 | 1/4(6) | 3.9(1.8) | 27(688) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-301L800 | 1/4(6) | 4.9(2.2) | 37.1(943) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L300 | 1/4(6) | 3.5(1.6) | 18.7(477) | 3500 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L500 | 1/4(6) | 4.5(2) | 28.3(719) | 3500 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L800 | 1/4(6) | 5.5(2.5) | 38.3(974) | 3500 | 1/4 | 3/8(10) | 4.2 |
