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Tool specifications

 

Model number 

JAT-420 

Stock number 

505420 

Style 

Straight 

Right angle 

Collet size 

1/4 in. 

1/4 in.  

Horsepower 

0.25 

0.25 

Free speed  

25,000 RPM 

20,000 RPM 

Average air consumption 

4.5 CFM 

4.5 CFM 

Air inlet 

1/4 in. NPT 

1/4 in. NPT 

Air hose inside diameter  

3/8 in. 

3/8 in. 

Required air pressure 

90 psi (6.2 bar) 

90 psi (6.2 bar) 

Vibration value 

3.0 m/s

2

 

3.0 m/s

2

 

Noise level 

1

 

88 dB(A) 

99 dB(A) 

Grip 

Inline 

Inline 

Overall Length 

4.92 in. (125 mm) 

4.92 in. (125 mm) 

Housing material 

Aluminum 

Aluminum 

Net weight  

0.7 lb. (0.32 kg) 

1 lb. (0.45 kg) 

Shipping weight 

1.95 lbs. (0.88 kg) 

1

 The specified values are emission levels and are not necessarily to be seen as safe operating levels. As 

workplace conditions vary, this information is intended to allow the user to make a better estimation of the 
hazards and risks involved only. 

 

 

Specifications were current at time of publication, but because of our policy of continuous improvement, JET 
reserves the right to change specifications at any time and without prior notice, without incurring obligations. 

Summary of Contents for JAT-420

Page 1: ...eumatic Mini Die Grinders 505420 JAT 420 Combo Pack Operation Maintenance Manual M 505420 Edition 2 11 2018 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2018 J...

Page 2: ...hile tired or under the influence of drugs alcohol or any medication 12 Adopt a comfortable posture with proper balance and maintain secure footing at all times Non slip footwear or anti skid floor st...

Page 3: ...rely inserted into collet and collet nut is tight 36 Make sure workpiece is secure and will not shift while operating die grinder Do not hold workpieces with your hand 37 Use only attachments designed...

Page 4: ...anual may not encompass all possible workplace environments The operator is expected to take appropriate precautions and exercise common sense As with any tool operation safety of operator and bystand...

Page 5: ...e Inline Overall Length 4 92 in 125 mm 4 92 in 125 mm Housing material Aluminum Aluminum Net weight 0 7 lb 0 32 kg 1 lb 0 45 kg Shipping weight 1 95 lbs 0 88 kg 1 The specified values are emission lev...

Page 6: ...o fail Instead add a leader hose and install any quick change couplings farther down the line 5 Adjust speed by turning regulator screw beneath housing with a flat blade screwdriver 6 Grip tool with b...

Page 7: ...air wrench is too small or the air compressor CFM is not powerful enough for the job Continued use in either capacity will cause damage to the tool Tool Pressure JET Air Tools operate on 70 to 100 psi...

Page 8: ...8 505420 JAT 420 Mini Die Grinder Combo Pack Figure 2 Recommended arrangement of air piping and air line system...

Page 9: ...ate properly according to instructions in this manual Bearings worn Disassemble and inspect bearing Grease or replace as needed Loss of power erratic action Low air pressure Verify compressor has prop...

Page 10: ...products For complete up to date product information check with your local distributor or visit the JET website How State Law Applies This warranty gives you specific legal rights subject to applicabl...

Page 11: ...JET 11...

Page 12: ...12 505420 JAT 420 Mini Die Grinder Combo Pack 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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