ZDG-376AL – 12-Inch Low-Speed Air Extension Die Grinder
The ZDG-376AL Air Extension Die Grinder is a precision low-speed pneumatic die grinder equipped with a 12-inch (305 mm) extension shaft, ideal for deep-access grinding tasks. Designed for industrial-grade applications, this tool strikes a balance between reach, control, and comfort—perfect for professionals working in confined or recessed environments.
Key Specifications
| Feature | Specification |
|---|---|
| Motor Power | 0.5 HP |
| Free Speed | 3,600 RPM |
| Collet Sizes | ¼″ (6 mm) and ⅜″ (8 mm) double-angle |
| Extended Shaft Length | 12 in (305 mm) |
| Net Weight | 2.2 lbs (1 kg) |
| Air Inlet Size | ¼″ NPT / PT |
| Minimum Hose Size | ⅜″ (10 mm) |
| Air Consumption | ~3.5 CFM |
| Exhaust | Rear exhaust for a cleaner workspace |
| Ergonomics & Safety | Cushion grip, power/speed regulator, twin-bearing spindle (<0.05 mm concentricity), low vibration |
Advantages & Benefits
-
Extended Reach with Control
The 12-inch extension allows you to work deeply into confined machinery, fixtures, or molds while maintaining accuracy and operator comfort. -
Torque-Focused Low-Speed Performance
With a modest 3,600 RPM output, the grinder delivers better control and torque—ideal for delicate operations using flap sanders or softer materials. -
Versatile Accessory Options
Dual-angle collet compatibility (6 mm and 8 mm) makes the tool adaptable to a wide range of grinding and polishing attachments. -
Comfort by Design
Equipped with an ergonomic cushion grip, speed regulator, and rear exhaust, this model enhances operator comfort and reduces fatigue during extended use. -
Precision Touch
The twin-bearing spindle reduces vibration and ensures concentricity under 0.05 mm for ultra-smooth operation.
Ideal Applications
-
Automotive Interiors – Detailing brake mounting areas, inner engine components, and tight chassis spaces.
-
Mold & Die Maintenance – Polishing and cleaning intricate internal features in complex tooling.
-
Industrial Fabrication & Maintenance – Reaching complex internal assemblies without disassembly.
Quick Comparison Table
| Model | RPM | Shaft Length | Weight | Best For |
|---|---|---|---|---|
| ZDG-376AL | 3,600 | 12″ (305 mm) | 2.2 lbs | Low-speed, torque-rich finishing in deep areas |
| ZDG-301L300 | 22,000 | 17.5″ | 2.9 lbs | Rapid finishing with moderate reach |
| ZDG-3076L300 | 3,500 | 18.7″ | 3.5 lbs | Controlled grinding with longer access |
Why Choose the ZDG-376AL?
The ZDG-376AL is an excellent pick for professionals needing tough, precise grinding deep within assemblies—where careful torque, clean airflow, and ergonomic design matter most. It brings low-speed finesse and extended reach without compromising on durability or comfort.
- Ergonomic cushion-grip handle-Insulates against cold temperature in the hand, helps ease user fatigue, and insulates against vibration.
- Power/Speed Regulator-Allows for easy rpm adjustment.
- Rear exhaust-Directs the exhaust away from the user and the working areas.
- Twin-Bearing Spindle – This high-quality design results in super-precise spindle concentricity, with less than 0.05mm deviation, and minimal vibration.
- The die grinder comes with 1/4″(6mm) or 3/8″(8mm) double-angle collets for industrial applications.
 |
| ZST-200E-29 6mm COLLET ZST-200E-29-1 1/4″ COLLET |
| Model | Collet Size inch(mm) |
Net Weight lbs(kgs) |
Length inch(mm) |
rpm | Air Inlet Size inch-NPT/PT |
Minch Hose Size inch(mm) |
Avg. Air Consumption cfm |
| ZDG-231 | 1/4(6) | 0.9(0.4) | 6.1(155) | 25000 | 1/4 | 3/8(10) | 3 |
| ZDG-2319 | 1/4(6) | 1.3(0.6) | 7.3(185) | 7600 | 1/4 | 3/8(10) | 3 |
| ZDG-231AL | 1/4(6) | 1.3(0.5) | 8.6(220) | 25000 | 1/4 | 3/8(10) | 2.6 |
| ZDG-231L | 1/4(6) | 1.5(0.7) | 10.1(259) | 25000 | 1/4 | 3/8(10) | 2.6 |
| ZP313 | 1/4(6) | 1.3(0.6) | 7(178) | 22000 | 1/4 | 3/8(10) | 3.7 |
| ZDG-356A | 1/4(6) | 1.5(0.7) | 7.8(200) | 2600 | 1/4 | 3/8(10) | 3.7 |
| ZDG-376A | 1/4(6) | 1.5(0.7) | 7.8(200) | 3600 | 1/4 | 3/8(10) | 3.7 |
| ZDG-376AL | 1/4(6) | 2.2(1) | 12(305) | 3600 | 1/4 | 3/8(10) | 3.5 |
| ZP314 | 1/4(6) | 1.5(0.7) | 9.4(240) | 22000 | 1/4 | 3/8(10) | 3.7 |
| ZP315 | 1/4(6) | 1.8(0.8) | 11(280) | 22000 | 1/4 | 3/8(10) | 3.7 |
