Description
Jet 402109 .3 HP 1/4″ Mini Die Grinder
The Jet 402109 .3 HP 1/4″ Mini Die Grinder:
- Product no. 402109
- Model no. MDG1
- Mini length housing is ideal for use in confined spaces
- All ball bearing construction for smooth operation
- Lever throttle with roller provides positive speed control
- Self-locking throttle lever prevents accidental motor start up
- Rear exhaust
- Integrated air regulator
- Includes standard accessories of wrenches and 1/8″ collet
Quality advances for longer service life include:
- Steel end plate inserts
- Brass collar
- Reinforced air inlet
- Cylinder made of higher quality steel
Looking for burrs for a die grinder? Click here.
JET 1/4″ Die Grinder Comparison Chart |
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| Product no. | 402108 | 402109 | 402110 | 402120 |
| Model no. | MDG144Z | MDG1 | MDG90 | MG90P |
| Motor HP | 0.3 | |||
| Collet Size | 1/4″ | |||
| Free Speed (RPM) | 25,000 | 25,000 | 18,000 | 18,000 |
| Overall Length | 6.69″ | 6-3/16″ | 5-3/16″ | 4-5/8″ |
| Avg. Air Consumption (CFM) | 2.5 | 4 | 5 | 4 |
| Min. Hose Size | 3/8″ | |||
| Air Inlet (NPT) | 1/4″ | |||
| Sound Pressure (dBA) | – | 90 | 103 | 86 |
| Vibration (m/s²) | – | 2.5 | 2.5 | 0.406 |
| Weight | 0.88 lb (0.4 kg) | 0.85 lb (0.38 kg) | 1.05 lb (0.47 kg) | 2.9 lb (1.31 kg) |
| JET 1/4″ Die Grinder Selection Chart | ||
| Standard Duty | Heavy Duty | Super Heavy Duty |
| Choose your JET Product no. / Model no. | ||
| 402108 / MDG144Z 0.3 HP Mini | 402113/ MG90HD 0.6 HP 90º Angle | 402116/ DG149HD 0.9 HP |
| 402109 / MDG1 0.3 HP Mini | 402114/ MG1HD 0.6 HP Mini | – |
| 402110/ MDG90 0.3 HP Mini 90º Angle | 402115/ MG6HDE 0.6 HP 6″ Extended | – |
| 402120/ MG90P 0.3 HP 90º Pistol Grip | 402118/ DG115HD 0.3 HP 115º Angle | – |
| – | 402121/ MG3HDE 0.6 HP 3″ Extended | – |
| – | 402123 / MG19HD 0.9 HP | – |
| – | 402124 / MG69HDE 0.9 HP 6″ Extended | – |
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