Square driver: 1/2"

Capacity Bolt Size: 0.71"

Free Speed: 8000r. p.M

Max Torque: 625ft-lb/850N. M

Overall length: 7.48" /190mm

Air Inlet: 1/4"

Air Hose: 3/8"

Net Weight: 6.28lbs/2.84kgs

Packing: 8pcs