Yt28 Air Leg Rock Drill/Yt27 Air Leg Rock Drill Guangzhou Sunrise Digital Technology Co., Ltd Base Info Description YT28 Air Leg Rock DrillWeight26kgLength661mmPiston diameter80mmPiston stroke60mmAir pressure0.40.50.63MpaImpact frequency≥28≥35≥36HzAir consumption≤52≤58≤82L/sImpact energy≥44≥63≥70JRotation torque≥15≥19≥23N.mRotation≥250≥400≥470mm/minNoise≤124≤125≤127DBAir hose inner diameter25mmShank size22 * 108mm25 * 108Air legFT160BC(long air leg)FT160BD (short air leg) Pre:Yt24 Pneumatic Air Leg Rock Drill / Hand Held Air Hammer/Rock Drill Next:Yt29A Air Leg Rock Drill