詳細規格及用途描述 3/8" DRV. DUAL PURPOSE AIR RATCHET WRENCH EXTRAMINI & BIT POSITION, MAX TORQUE: 20FT-LBS/27 N-m, NET WEIGHT: 0.4KG/0.9LB, SPEED: 260RPM, AIR CONSUMPTION: 12 SCFM, LENGTH: 120MM