BK30 BK30 Wrench Air Shandong Air trigger trigger 
 BK30 BK30 gas trigger pneumatic wrench 
 Model rated working pressure MPa torque N? M idling speed r / min idle \ Consumption m3/min Noise dB (A) apothem mm square head pipe inner diameter mm Size mm Weight kg 
 BK20 0.4-0.63 ≥ 490 ≥ 6000 ≤ 1.2 ≤ 118 37 19 × 19 16 4.2 
 BK30 0.4-0.63 ≥ 882 ≥ 5500 ≤ 2.4 ≤ 118 42 19 × 19 16 5.8 
 BK42 0.4-0.63 2000 ≥ 5000 ≤ 2.5 ≤ 118 55 25.4 × 25.4 16 9.5