Product Line

Air Rotary Tools

Model No.: 4331, Low Noise Air Angle Die Grinder (0.5HP/373W), 18,000RPM
Round out : below 0.1mm
Aluminum housing with ergonomic handle grip for comfort handling & fatigue free
Angle head allows flexibility for grinding in confined areas
Two front bearings for better and stable spindle rotation
Spiral bevel gearing in angle head provided extended life and smooth power
Grease point on angle head for easy maintenance
Self-Locking Lever to prevent accident start ups
Adjustable regulator of variable speed control
Exhaust whip hose (length: 50cm) is optional, directing cold air away from users in freezing working areas

Noise: Sound Pressure: 78 dba / Sound Power: 89 dba
Vibration: 5.9 m/s2

Model No.: 4331K Content:
Air Angle Die Grinder x 1pc
3mm (1/8”) Collet x 1pc
3mm (1/8”) Grinding Stones x 5pcs
6mm (1/4”) Grinding Stones x 5pcs
2" Back Pad x 1pc
3" Back Pad x 1pc
2" Stripping Discs x 5pcs
3" Stripping Discs x 5pcs
Wrenches x 2pcs
Plug x 1pc
Blow Molded Case x 1pc

Low Noise Air Angle Die Grinder

Model No.


Free Speed

18,000 RPM

Horse Power

0.5HP / 373W

Collet Size

6mm or 1/4"

Average Air Consumption

4CFM [113.3 L/min]


180mm (7.1 in.)

Net Weight

0.7kg [1.5 lbs.]

Air Inlet


Air Pressure

90PSI [6.3 kg/cm²]

Packing Information
Model No.: 4331, Packing: 12PCS/CTN, N.W.: 11KG, G.W.: 12KG, CUFT: 0.8’
Model No.: 4331K, Packing: 10SETS/CTN, N.W.: 17.6KG, G.W.: 18.6KG, CUFT: 1.8’