Use and Care Manual
6 JAT-320,321 Ratchet Wrenches
Tool specifications
Model number JAT-320 JAT-321
Stock number 505320 505321
Square drive 1/4 in. 3/8 in.
Bolt capacity 5/16 in. 5/16 in.
Anvil retainer type Hog ring Ball detent
Impact mechanism Single hammer Single hammer
Maximum torque 50 lbf•ft (67.8 N•m) 50 lbf•ft (67.8 N•m)
Working torque 10-35 lbf•ft (13.6-47.5 N•m) 10-35 lbf•ft (13.6-47.5 N•m)
Free speed 700 RPM 700 RPM
Average air consumption 3.1 CFM 3.1 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 (621 kPa) 90 psi (621 kPa)
Vibration value 8.6 m/s
2
13.7 m/s
2
Noise level
1
102 dB(A) 101 dB(A)
Power setting variable, forward and reverse
variable, forward and reverse
Grip Inline Inline
Overall Length 6.5 in. (165.1 mm) 6.5 in. (165.1 mm)
Housing material Aluminum with rubber grip Aluminum with rubber grip
Net weight 1.32 lb. (0.60 kg) 1.32 lb. (0.60 kg)
Shipping weight 1.34 lb. (0.61 kg) 1.34 lb. (0.61 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.